... ,316L 3.CNC lathe process 4.API&ISO certification socket banded,standard wall,sch40.As the professional stainless steel pipe fittings manufacturer ... , elbow union conical m/f with best quality and low price.Descrition of socket banded:ProductStainless Steel Socket BandedThe thread ends standardASME B ... ,304L,316,316L,301,430ETCSize1/8”-4”Design drawings: Samples: socket banded,standard wall,sch40