Our company specializes in copper-based/paper-based friction material and etc and can produce the goods according to your request. We have won common praises and approvals from customers at home and abroad since it entered into the market at the beginning of the nineties. Our clutch button offer higher performance than normal clutch facing, and can resist high temperatures ,also it has long service life. Any of your inquiry will be appreciated. jjwsee(AT)hotmail.com