npt male plug: 1,material:ss304,ss316,brass,copper 2,size:1/8"-1" 3,OEM order are welcomed 4, ... for Manufacture:304SS,316SS.316L,brassThe Demands for Fitting Pipes:Φ3 to Φ30Cone Thread: ZG, R, GPT, NPT ... , weld (forged) tube fittings, and long straight way connector are available,Anticorrosion joints applied to food pharmaceutical ... (ferrule structure and general) brass npt thread male plug adapter