... requestFactory Photo:Quality Assurance1,Before Production we will check all raw material,including PTFE Powder, Spool and Cover, Packing Box.2, ... will inspection the goods before delivery. Why Choose Us?1,Raw material use 100% PTFE 2,Tape Width,Thickness,Length and ... Density Will not short any3,Raw material book from First Supplier and we have large Production Capacity ...