Non-standard can be processed according to the drawing Material:304,304L,321,316,316L,2520/310S,2205/S31803,S32750,S32760,904L,347H Size: 1/2”-12”(DN15-DN300) seamless;1/2”-140”(DN15-DN3200) welded Thickness: SCH5S-SCH160 Raw Material: Seamless pipe,Welded pipe,Steel sheet,Forging(High pressure) Manufacture Process: Extrusion moulding,Pressing,Cold-Working,Machining,Welded,Heat treatment