สถิติ
เปิดเมื่อ28/01/2015
อัพเดท10/11/2023
ผู้เข้าชม1650535
แสดงหน้า2105963
ปฎิทิน
March 2024
Sun Mon Tue Wed Thu Fri Sat
     
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
      
สมาชิก

สมัครสมาชิก | ลืมรหัสผ่าน

ทังสเตนคาร์ไบด์

อ่าน 484833 | ตอบ 7749
ทังสเตนคาร์ไบด์
       ทังสเตนคาร์ไบด์ (อังกฤษ: tungsten carbide) มีสูตรเคมีคือ WC ในรูปพื้นฐานจะมีลักษณะเป็นผงสีเทาละเอียด มี 2 โครงสร้างคือแบบหกเหลี่ยม (α-WC) และแบบลูกบาศก์ (β-WC)
 
       ทังสเตนคาร์ไบด์เตรียมได้จากการทำปฏิกิริยาระหว่างทังสเตนกับคาร์บอนที่อุณหภูมิ 1400–2000 °C[3] หรือให้ความร้อนกับทังสเตนไตรออกไซด์และแกรไฟต์โดยตรงที่ 900 °C หรือในแก๊สไฮโดรเจนที่ 670 °C ตามด้วยการคาร์บิวไรเซชันในแก๊สอาร์กอนที่ 1000 °C[4] หรือใช้วิธีการเคลือบด้วยไอเคมี เช่น
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะคลอไรด์กับไฮโดรเจนและมีเทนที่อุณหภูมิ 670 °C (1,238 °F)
 WCl6 + H2 + CH4 WC + 6 HCl
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะฟลูออไรด์กับไฮโดรเจนและเมทานอลที่อุณหภูมิ 350 °C (662 °F)
                WF6 + 2 H2 + CH3OH → WC + 6 HF + H2O
       ทังสเตนคาร์ไบด์มีจุดหลอมเหลวที่ 2,870 °C (5,200 °F) และจุดเดือดที่ 6,000 °C (10,830 °F) มีความแข็งระดับ 9 ตามมาตราโมสและประมาณ 2600 ตามมาตราวิกเคอส์[5] ทังสเตนคาร์ไบด์มีความแข็งเกร็งมากกว่าเหล็กกล้าประมาณ 2 เท่า มีค่ามอดุลัสของยังประมาณ 530–700 GPa (77,000–102,000 ksi)[2][6][5][7] โมดูลัสของแรงบีบอัด 630–655 GPa และโมดูลัสของแรงเฉือน 274 GPa[8]
 
ด้วยคุณสมบัติความแข็งและทนความร้อนสูง ทังสเตนคาร์ไบด์จึงใช้ทำเป็นเครื่องมือตัดหรือหัวเจาะ ใช้ทำกระสุนเจาะเกราะ เครื่องมือผ่าตัด อุปกรณ์กีฬา เครื่องประดับและอื่น ๆ
 
 
 
 
 
 
 
 
 
 
อ้างอิง
 
  1. Kurlov, p. 22
  2. Blau, Peter J. (2003). Wear of Materials. Elsevier. p. 1345. ISBN 978-0-08-044301-0.
  3. Pierson, Hugh O. (1992). Handbook of Chemical Vapor Deposition (CVD): Principles, Technology, and Applications. William Andrew Inc. ISBN 0-8155-1300-3.
  4. Zhong, Y.; Shaw, L. (2011). 'A study on the synthesis of nanostructured WC–10 wt% Co particles from WO3 , Co3O4 , and graphite'. Journal of Materials Science 46 (19): 6323–6331. Bibcode:2011JMatS..46.6323Z. doi:10.1007/s10853-010-4937-y.
  5. Groover, Mikell P. (2010). Fundamentals of Modern Manufacturing: Materials, Processes, and Systems. John Wiley & Sons. p. 135. ISBN 978-0-470-46700-8.
  6. Kurlov, p. 3
  7. Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. Springer Science & Business Media. pp. 640–. ISBN 978-1-84628-669-8.
  8. Kurlov, pp. 30, 135
  9. Sprince, NL.; Chamberlin, RI.; Hales, CA.; Weber, AL.; Kazemi, H. (1984). 'Respiratory disease in tungsten carbide production workers'. Chest 86 (4): 549–557. PMID 6434250. doi:10.1378/chest.86.4.549.
  10. 12th Report on Carcinogens'. National Toxicology Program. http://ntp.niehs.nih.gov/go/roc12. เรียกข้อมูลเมื่อ 2011-06-24.
ความคิดเห็น :
3919
อ้างอิง

sfjhb
  อ้างอิงจาก brian 16 มี.ค. 2566, 20:30   
Indian Helpline provides networking opportunities and facilitates connections and resources for women's awareness and assistance in emergency situations. Female victims in India have access to free legal aid and support from the Legal Services Authority, and can connect with state legal service authority, lawyers, or police for help .Indian Helpline shares valuable information regarding helpline numbers, rehabs, and mental health awareness for the welfare of individuals.
 <a href=https://google.com/#>jchvbfdehv</a>
 
sfjhb [132.154.182.xxx] เมื่อ 16/03/2023 20:33
3920
อ้างอิง

Hanzo
I really enjoy your writing. I appreciate the knowledge you provide us in your postings, and I’d want to bookmark your page so I can read your posts again since you did a fantastic job. Drywall Installation
 
Hanzo [158.62.0.xxx] เมื่อ 16/03/2023 20:40
3921
อ้างอิง

mohity
Watch And Download Free Movie Online At VegaMovies In 480p, 720p and 1080p quality in hindi dubbed dual audio.
 
mohity [157.90.179.xxx] เมื่อ 17/03/2023 02:47
3922
อ้างอิง

soniyayer
Hello there, I'm Soniya Ayer. I have been functioning as a Model at Chennai Escorts. Chennai Escorts is an overall Escorts Service and wholesaling Organization situated in India that arrangement in Chennai Escort Service and other in addition to assortments of Model Girls in Chennai. Our Escorts Service is Chennai made with authentic and morally obtained models that are cherished by gentleman around the world. We are devoted to giving selective part advantages to our clients with a significant services experience.
 
Chennai Escorts | Mumbai Airport Escorts | Belapur Escorts | Ghatkopar Escorts | Lokhandwala Escorts | Miraroad Escorts | Mumbai Central Escorts | Kurla Escorts | Malad Escorts | Chandivali Escorts | Khandala Escorts | Vashi Escorts | Katraj Escorts | Dadar Escorts | Chembur Escorts | Borivali Escorts | Colaba Escorts | Thane Escorts | Juhu Escorts | Bandra Escorts | Goregaon Escorts | Worli Escorts | Udaipur Escorts | Nagpur Escorts | Bhopal Escorts | Andheri Escorts | Surat Escorts | Nashik Escorts | Coimbatore Escorts | Vadodara Escorts | Hyderabad Escorts | Bangalore Escorts | Jaipur Escorts | Kolkata Escorts | Pune Escorts | Ahmedabad Escorts | Ajmer Escorts | Mumbai Escorts | Anna Nagar Escorts | Marina Beach Escorts | T Nagar Escorts | Harrington Road Escorts | Alwarpet Escorts | Besant Nagar Escorts | Egmore Escorts | Guindy Escorts | Valarpuram Escorts | Mambakkam Escorts | Mylapore EscortsAnnanur Escorts | Ambattur Escorts | Chrompet Escorts | Elite Chennai Escorts | Cheap Chennai Escorts | Russian Chennai Escorts | Young Chennai Escorts | Busty Chennai Escorts | Housewife Chennai Escorts | High Class Chennai Escorts | Model Chennai Escorts | Air Hostess Chennai Escorts | Chennai Call Girls | Celebrity Chennai Escorts | Punjabi Chennai Escorts | Chinese Chennai Escorts | College Girls Chennai Escorts | Party Girls Chennai Escorts
 
ลิงค์ที่เกี่ยวข้อง : https://www.soniyayer.com
soniyayer [45.115.177.xxx] เมื่อ 17/03/2023 11:51
3923
อ้างอิง

ucallgirls
 
ลิงค์ที่เกี่ยวข้อง : https://www.shtfsocial.com/posts/41066
ucallgirls [157.50.15.xxx] เมื่อ 17/03/2023 11:53
3924
อ้างอิง

Mumbai

call girls in the Oberoi hotel Mumbai

call girls in Meluha The Fern hotel Mumbai

call girls in Taj Santacruz Hotel Mumbai

call girls in four seasons hotel Mumbai

call girls in the St Regis Hotel Mumbai

call girls in taj mahal tower hotel Mumbai

call girls in Sahara star hotel Mumbai

call girls in Itc grand central hotel Mumbai

call girls in trident hotel Nariman point Mumbai

call girls in Hilton hotel Mumbai

call girls in trident hotel Bandra Kurla Mumbai

call girls in sun n sand juhu hotel mumbai

call girls in Radisson blu hotel international airport Mumbai

call girls in JW Marriott hotel Juhu Mumbai

call girls in Radisson hotel Goregaon Mumbai

call girls in president hotel Mumbai

call girls in JW Marriott Sahara Mumbai

call girls in the Lalit hotel Mumbai

call girls in the Westin garden city hotel Mumbai

call girls in taj wellington mews hotel Mumbai

call girls in Meluha The Fern hotel Mumbai

call girls in Hyatt regency hotel Mumbai

call girls in Svenska design hotel Mumbai

call girls in grand Hyatt hotel Mumbai

call girls in intercontinental hotel Mumbai

call girls in renaissance hotel Mumbai

call girls in marine plaza hotel Mumbai

call girls in the orchid hotel Mumbai vile parle

call girls in the Leela hotel Mumbai

call girls in ramada plaza hotel Mumbai

call girls in the resort Madh Marve hotel Mumbai

call girls in z luxury residences hotel Mumbai

call girls in lemon tree premier hotel Mumbai

escorts in the Oberoi hotel Mumbai

escorts in Meluha The Fern hotel Mumbai

escorts in Taj Santacruz Hotel Mumbai

escorts in four seasons hotel Mumbai

escorts in the St Regis Hotel Mumbai

escorts in taj mahal tower hotel Mumbai

escorts in Sahara star hotel Mumbai

escorts in Itc grand central hotel Mumbai

escorts in trident hotel Nariman point Mumbai

escorts in Hilton hotel Mumbai

escorts in trident hotel Bandra Kurla Mumbai

escorts in sun n sand juhu hotel mumbai

escorts in Radisson blu hotel international airport Mumbai

escorts in JW Marriott hotel Juhu Mumbai

escorts in Radisson hotel Goregaon Mumbai

escorts in president hotel Mumbai

escorts in JW Marriott Sahara Mumbai

escorts in the Lalit hotel Mumbai

escorts in the Westin garden city hotel Mumbai

escorts in taj wellington mews hotel Mumbai

escorts in Meluha The Fern hotel Mumbai

escorts in Hyatt regency hotel Mumbai

escorts in Svenska design hotel Mumbai

escorts in grand Hyatt hotel Mumbai

escorts in intercontinental hotel Mumbai

escorts in renaissance hotel Mumbai

escorts in marine plaza hotel Mumbai

escorts in the orchid hotel Mumbai vile parle

escorts in the Leela hotel Mumbai

escorts in ramada plaza hotel Mumbai

escorts in the resort Madh Marve hotel Mumbai

escorts in z luxury residences hotel Mumbai

escorts in lemon tree premier hotel Mumbai

escorts service in the Oberoi hotel Mumbai 

escorts service in Meluha The Fern hotel Mumbai 

escorts service in Taj Santacruz Hotel Mumbai

escorts service in four seasons hotel Mumbai

escorts service in the St Regis Hotel Mumbai

escorts service in taj mahal tower hotel Mumbai

escorts service in Sahara star hotel Mumbai

escorts service in Itc grand central hotel Mumbai

escorts service in trident hotel Nariman point Mumbai

escorts service in Hilton hotel Mumbai

escorts service in trident hotel Bandra Kurla Mumbai

escorts service in sun n sand juhu hotel mumbai

escorts service in Radisson blu hotel international airport Mumbai

escorts service in JW Marriott hotel Juhu Mumbai

escorts service in Radisson hotel Goregaon Mumbai

escorts service in president hotel Mumbai

escorts service in JW Marriott Sahara Mumbai

escorts service in the Lalit hotel Mumbai

escorts service in the Westin garden city hotel Mumbai

escorts service in taj wellington mews hotel Mumbai

escorts service in Meluha The Fern hotel Mumbai

escorts service in Hyatt regency hotel Mumbai

escorts service in Svenska design hotel Mumbai

escorts service in grand Hyatt hotel Mumbai

escorts service in intercontinental hotel Mumbai

escorts service in renaissance hotel Mumbai

escorts service in marine plaza hotel Mumbai

escorts service in the orchid hotel Mumbai vile parle

escorts service in the Leela hotel Mumbai

escorts service in ramada plaza hotel Mumbai

escorts service in the resort Madh Marve hotel Mumbai

escorts service in z luxury residences hotel Mumbai

escorts service in lemon tree premier hotel Mumbai

the Oberoi hotel Mumbai escorts service 

Meluha The Fern hotel Mumbai escorts service 

Taj Santacruz Hotel Mumbai escorts service

four seasons hotel Mumbai escorts service

the St Regis Hotel Mumbai escorts service

taj mahal tower hotel Mumbai escorts service

Sahara star hotel Mumbai escorts service

Itc grand central hotel Mumbai escorts service

trident hotel Nariman point Mumbai escorts service

Hilton hotel Mumbai escorts service

trident hotel Bandra Kurla Mumbai escorts service

sun n sand juhu hotel mumbai escorts service

Radisson blu hotel international airport Mumbai escorts service

JW Marriott hotel Juhu Mumbai escorts service

Radisson hotel Goregaon Mumbai escorts service

president hotel Mumbai escorts service

JW Marriott Sahara Mumbai escorts service

the Lalit hotel Mumbai escorts service

the Westin garden city hotel Mumbai escorts service

taj wellington mews hotel Mumbai escorts service

Meluha The Fern hotel Mumbai escorts service

Hyatt regency hotel Mumbai escorts service

Svenska design hotel Mumbai escorts service

grand Hyatt hotel Mumbai escorts service

intercontinental hotel Mumbai escorts service

renaissance hotel Mumbai escorts service

marine plaza hotel Mumbai escorts service

the orchid hotel Mumbai vile parle escorts service

the Leela hotel Mumbai escorts service

ramada plaza hotel Mumbai escorts service

the resort Madh Marve hotel Mumbai escorts service

z luxury residences hotel Mumbai escorts service

lemon tree premier hotel Mumbai escorts service

the Oberoi hotel Mumbai escorts  

Meluha The Fern hotel Mumbai escorts  

Taj Santacruz Hotel Mumbai escorts

four seasons hotel Mumbai escorts

the St Regis Hotel Mumbai escorts

taj mahal tower hotel Mumbai escorts

Sahara star hotel Mumbai escorts

Itc grand central hotel Mumbai escorts

trident hotel Nariman point Mumbai escorts

Hilton hotel Mumbai escorts

trident hotel Bandra Kurla Mumbai escorts

sun n sand juhu hotel mumbai escorts

Radisson blu hotel international airport Mumbai escorts

JW Marriott hotel Juhu Mumbai escorts

Radisson hotel Goregaon Mumbai escorts

president hotel Mumbai escorts

JW Marriott Sahara Mumbai escorts

the Lalit hotel Mumbai escorts

the Westin garden city hotel Mumbai escorts

taj wellington mews hotel Mumbai escorts

Meluha The Fern hotel Mumbai escorts

Hyatt regency hotel Mumbai escorts

Svenska design hotel Mumbai escorts

grand Hyatt hotel Mumbai escorts

intercontinental hotel Mumbai escorts

renaissance hotel Mumbai escorts

marine plaza hotel Mumbai escorts

the orchid hotel Mumbai vile parle escorts

the Leela hotel Mumbai escorts

ramada plaza hotel Mumbai escorts

the resort Madh Marve hotel Mumbai escorts

z luxury residences hotel Mumbai escorts

lemon tree premier hotel Mumbai escorts

the Oberoi hotel Mumbai call girls  

Meluha The Fern hotel Mumbai call girls  

Taj Santacruz Hotel Mumbai call girls

four seasons hotel Mumbai call girls

the St Regis Hotel Mumbai call girls

taj mahal tower hotel Mumbai call girls

Sahara star hotel Mumbai call girls

Itc grand central hotel Mumbai call girls

trident hotel Nariman point Mumbai call girls

Hilton hotel Mumbai call girls

trident hotel Bandra Kurla Mumbai call girls

sun n sand juhu hotel mumbai call girls

Radisson blu hotel international airport Mumbai call girls

JW Marriott hotel Juhu Mumbai call girls

Radisson hotel Goregaon Mumbai call girls

president hotel Mumbai call girls

JW Marriott Sahara Mumbai call girls

the Lalit hotel Mumbai call girls

the Westin garden city hotel Mumbai call girls

taj wellington mews hotel Mumbai call girls

Meluha The Fern hotel Mumbai call girls

Hyatt regency hotel Mumbai call girls

Svenska design hotel Mumbai call girls

grand Hyatt hotel Mumbai call girls

intercontinental hotel Mumbai call girls

renaissance hotel Mumbai call girls

marine plaza hotel Mumbai call girls

the orchid hotel Mumbai vile parle call girls

the Leela hotel Mumbai call girls

ramada plaza hotel Mumbai call girls

the resort Madh Marve hotel Mumbai call girls

z luxury residences hotel Mumbai call girls

lemon tree premier hotel Mumbai call girls

call girls in lalco residency hotel Mumbai

call girls in genesis resorts private limited

call girls in niranta airport transit hotel Mumbai

call girls in the empresa hotel Mumbai

call girls in the mirador hotel Mumbai

call girls in ramada by Wyndham Powai hotel Mumbai

call girls in dragonfly hotel Mumbai

call girls in Fariyas Hotel Mumbai

call girls in Suba international hotel Mumbai

call girls in the ambassador hotel Mumbai

call girls in comfort inn heritage hotel Mumbai

call girls in the fern an ecotel hotel Mumbai

call girls in the fern residency hotel Mumbai

call girls in goldfinch hotel Mumbai

call girls in holiday inn Mumbai international airport

call girls in courtyard by Marriott Mumbai international airport

call girls in residency Sarovar portico Mumbai

escorts in lalco residency hotel Mumbai

escorts in genesis resorts private limited

escorts in niranta airport transit hotel Mumbai

escorts in the empresa hotel Mumbai

escorts in the mirador hotel Mumbai

escorts in ramada by Wyndham Powai hotel Mumbai

escorts in dragonfly hotel Mumbai

escorts in Fariyas Hotel Mumbai

escorts in Suba international hotel Mumbai

escorts in the ambassador hotel Mumbai

 

ลิงค์ที่เกี่ยวข้อง : https://www.missmumbai.com
Mumbai [223.190.112.xxx] เมื่อ 17/03/2023 13:18
3925
อ้างอิง

adhiranene
 
ลิงค์ที่เกี่ยวข้อง : https://adhiranene.com/
adhiranene [103.165.103.xxx] เมื่อ 17/03/2023 19:01
3926
อ้างอิง

Clinton
What's up i am kavin, its my first time to commenting anyplace, when i read this post i thought i could also create comment due to this sensible article.
 
ลิงค์ที่เกี่ยวข้อง : http://nastroyke-info.ru/
Clinton [37.214.58.xxx] เมื่อ 17/03/2023 19:24
3927
อ้างอิง

adhiranene

How to Prepare for a Navi Mumbai Escorts Service Reservation

An excellent strategy to have a successful date is to reserve a Navi Mumbai Escorts Service. A few pointers should be kept in mind to make sure everything works smoothly.

In order to be sure that the escort is knowledgeable about dates and has the expertise, it is first crucial to talk with the escort service.

The expectations for the day, including the kind of activities preferred and the duration, should be made clear in the second place. Lastly, to make sure that everything is agreed upon and that both parties are comfortable, it is crucial to discuss payment and any particular requirements beforehand.

Last but not least, it's critical to treat everyone with respect and courtesy throughout the booking process and to make sure the escort is secure and at ease. These pointers will make it more likely that the date will be successful and enjoyable.

It's critical to be informed of regional regulations and safety measures before making a Navi Mumbai Escorts reservation. Also, it's critical to communicate your expectations clearly and openly, as well as to make sure the escort is happy with the arrangement.

It's crucial to be specific about the date's duration, the activities and services you want to use, and any other unique requirements. In order to confirm that the escort is of legal age, it is also crucial to give the escort a legitimate form of identification.

In order to avoid confusion or problems, it is also crucial to give the escort any payments in advance. To ensure that everyone is on the same page and that their demands are addressed, it is also crucial to communicate with the escort before, during, and after the date.

Also, it's crucial to treat the escort with respect and consideration both before and throughout the date. You should also be sure to adhere to any rules or regulations that the escort or agency may have in place.

It's crucial to respect the escort's boundaries and adhere to any instructions or requests they may have.

Last but not least, it's critical to be aware of any additional costs or gratuities that may be included with the reservation and to be sure to pay them in full before the date ends. By using these suggestions, you can make sure that the date goes well for the escort and the client.

Escort Girl Dadar
Escort Service Dharavi
Escort Services Lokhandwala
Escorts Nalasopara
Kalyan Escort
Vasai Escort Girl
Mira Bhayandar Escort Service
Versova Escort Services
Kurla Escorts
Panvel Escorts Service
Jogeshwari Independent Escorts
Escorts Service Nerul
Independent Escorts Wadala
Escort in Viman Nagar
Escort Service Koregaon Park
Escort Service in Lonavala
Escort Services in Wakad
Escorts Hinjewadi
Escorts in Kalyani Nagar
Escorts Service Bandra
Escorts Service in Juhu
Escorts Service in Colaba
Independent Escort in Powai
Escort Vashi
Escort Girl Malad
Escort Service Aundh
Escort Services Borivali
Escorts Worli
Thane Escort
Sakinaka Escort Girl
Chembur Escort Service
Andheri Escort Services
Vile Parle Escorts
Mira Road Escorts Service
Pimpri Chinchwad Independent Escorts
Escorts Service Baner
Independent Escorts Shivaji Nagar
Escort in Pimple Saudagar
Escort Service Magarpatta

 
ลิงค์ที่เกี่ยวข้อง : https://adhiranene.com/
adhiranene [103.165.103.xxx] เมื่อ 17/03/2023 19:58
3928
อ้างอิง

kamagra danmark
Du kan vælge imellem, at købe Viagra online diskret, Cialis piller eller Levitra online, der alle er udviklet af førende medicinalproducenter.
 
kamagra danmark [210.89.61.xxx] เมื่อ 18/03/2023 01:55
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :