... ,316SS.316L,brassThe Demands for Fitting Pipes:Φ3 to Φ30Cone Thread: ZG, R, GPT, NPT.etcYuwei Lok brand series products have ... ,Double ferrule pipe joints, weld (forged) tube fittings, and long straight way connector are available,Anticorrosion joints applied to food pharmaceutical ... ,10. Simple style nut (ferrule structure and general) brass npt thread male plug adapter