... and highly effective means of sealing threaded pipe fittings in the ENGINEERING ,CHEMICAL and ELECTRICAL100% PTFE tape for pipe fittingSpecifications: Density ... Assurance1,Before Production we will check all raw material,including PTFE Powder, Spool and Cover, Packing Box.2,During Production ... delivery. Why Choose Us?1,Raw material use 100% PTFE 2,Tape Width,Thickness,Length and Density Will not short ...