stainless steel pipe NL12427 stainless steel pipeit's made from SUS304 stainless steel OD :21mm , Thickness 2.5mm with polishing 1/2'' outside thread and 1/2" inner threadG-1/2" thread (European pipe thread) or NPT-1/2" (Amercian pipe thread) is favorable each piece with blister bag , bulk packaging with the wooden case . Length: 500m750mm1000mm1200mm Stainless Steel Pipe