... applied in construction machinery, chemical industry Product name:PTFE THREAD SEAL TAPE Raw Material:PTFE Colour:yellow,white ,red,blue,pik Brand ... customer's requestQuality Assurance1,Before Production we will check all raw material,including PTFE Powder, Spool and Cover, Packing Box. ... Tape Width,Thickness,Length and Density Will not short any3,Raw material book from First Supplier and we have large ...