... Qualty, Good Service. Good Packing,Legris stardard.Pneumatic components. 1. The proffessional factory of pneumatic fitting. 2 ... : Nylon and Polyurethane. Sizes Available: Tubing - Inch, Metric; Thread - NPT, BSPT (R), Metric, Unified (UNF), BSPP (G ... ) Pipe Tapered Thread BSPT (R) ---British Standard Pipe Tapered Thread BSPP (G) --- British Standard Pipe Parallel Thread pneumatic components-ATC-C