pad flange standard: Flange pads are divided into asbestos pads, rubber pads, graphite pads, metal winding pads (basic type) are made of standard high-quality SS304, SS316 ("V"-shaped or "W"-shaped) metal bands and other alloy materials It is formed by overlapping and spirally winding with flexible materials such as graphite, asbestos, polytetrafluoroethylene, non-asbestos, etc. and fixing the metal belt by spot welding at the beginning and the end. Its function is to play a sealing role in the middle of the two flanges.
