... CE,IECEX,UL 2.PTC Material 3.Heat tracing for pipe,tank,vessel etc 4.Flame retardant, water resistance & explosion proof ... self-regulating heat preservation for pipe Approvals: IECExApplication:Self-regulating heating cable provides a safe, reliable ... (width8~10mm,thickness4~5mm); enhanced cable(width12~16mm;thickness5~7) Copper buss wire:57/0.3, 7/0.6, 19/0 ...