Teflon（Polytetrafluoroethene；PTFE）：

Teflon is a kind of resin, scientific name is Polytetrafluoroethene（PTFE）. Usually can be used under -100℃~260℃. PTFE has great release and chemical environmenal resistance, also with great weather resistance, chemical resistance, fire-resistant and insulation.

Silicon:

Silicon is kind of material, using for make semiconductor components and integrated circuit, also can be used for car parts or mechanical parts in the form of alloys. Using in cermet with ceramic material, making glass, concrete, refractory …., it has a vast scope for use.

Boron Nitride：

Boron Nitride is a dual compound, composed by same quantity of nitrogen atom and boron atom.It has high thermal conductivity and high lubrication, can use in industries which need heat radiation in process, bring good effect for it.