PPL: PPL gasket is a high-quality high-temperature resistant materialPara-polyphenol, the "polyphenyl" powder burned in a high-temperature furnace will begin to decompose at 520°C without melting point. It will cause slight weight loss when heated for a long time at 450°C. It is an engineering plastic that has been used for a long time below 400°C.PPL Gasket
Classification of Dusted Free Asbestos Round Rope Dusted Free Asbestos Round Rope belongs to a kind of woven asbestos insulation products. Asbestos insulation products can be divided into 5 grades according to the ignition loss at high temperature:
Fiberglass Ropes is an engineering material, which has the advantages of non-combustibility, corrosion resistance, high temperature resistance, low temperature absorption, and small deformation coefficient.
This passage is about Braided packing is a major component of compression packing.
The card reader is a tool for reading and writing files in the memory card.