Pure PTFE F4 Production Line 1.white, slippery, no spot 2.on sale 3.operation temperature:-180-+260 4.Min.Order,100KG Pure PTFE F4 Production LineZIBO KAICHUANG IS PROFESSIONAL IN PTFE PRODUCTS MANUFATUREING. Main products arePTFE sheet, PTFE rod, PTFE pipe, gasket, and so on.1. We can supply all kinds of white virgin PTFE sheets.2.The sheets can be used in lining bearing pads, seals and ...