... matt finishing, sandblast or picklingConnection: welded , threaded , clamped and union type. We also supply butterfly valve,ball valve,check ... Prompt quotation, competitive price, punctual delivery and guaranteed quality. YODSN FLUID EQUIPMENT CO.,LTD",a ISO9001:2008 certified manufactory ... brand CNC machine tools, Full automatic cutting and production equipment, Automatic Argon arc welding machine ...