PTFE had Special performance Compared with other plastic. such as Never aging, Colleagues of high and low temperature resistance, and etc. so PTFE was widely used as a resistant high&low temperature material, corrosion-resistant materials, insulation materials in the atomic energy, defense, aerospace, electronics, electrical, chemical industry, machinery, instruments, meters, construction, textile, metal surface treatment, pharmaceutical, medical, food, and metallurgical smelting industry, and become irreplaceable products.