... and hight pure agentia household utensils ect2.In machine industry use as piston ring,guide ring, machine tool guideways ect ... board ect.4.In Construction Trades use as bridge,tunnel ahead ,large-scale chemical industry pipeline,storage tank supporting bearing ... 5.In light textile and other industry ,because ptfe product have nonstick properties ,it use in spinning,papermaking, foodstuff,rubber, ...