... LTD,which is one of the biggest engineering plastic products manufactory in CHINA market for more than 20 years with good ... fiber,graghite,carbon,bronze.It will have good heat conductivity and low heat expansion coefficient.Application:It has good corrosion- ... the production of washer,valve,bearing,slide,pistonring,insulating sleeve, and self-lubricating seal. Colour white,black or other colorDensity: ...