... , and gasket, etc. It is die-pressed or turned by 100% pure PTFE raw material. In the known plastics, the PTFE has ... , and gasket, etc. It is die-pressed or turned by 100% pure PTFE raw material. In the known plastics, the PTFE has ... , graphite, and copper, etc., then die-pressed. Comparing with the pure PTFE product, it has better compressive strength, wearing resistance, good ...