... ,316L 3.CNC lathe process 4.API&ISO certification BSP thread ss socket banded..As the professional stainless steel pipe fittings ... ,tee, red tee, hex nipple, hex bushing, hex cap, hex plug, weld nipple, barrel nipple, union conical f/f, elbow union ... low price.Descrition of socket banded:ProductStainless Steel Socket BandedThe thread ends standardASME B 1.20.1(NPT) DIN 2999&BS21ISO228 ...