国产午夜精品在线观看,一本到一区二区三区,亚洲啪啪91,久久亚洲春色中文字幕

Classification: PFA fusible polytetrafluoroethylene series

Brand: Lichang

Packing: 25kg/ pack

Description: It has excellent heat resistance, cold resistance, chemical stability, mechanical property, insulation, self-lubricating property, folding resistance, cracking resistance and so on. A total of 22 products of injection molding, extrusion, molding three series of nine colors.