... 400G), semi-polish, matt finishing, sandblast or picklingConnection: welded , threaded , clamped and union type. We also supply butterfly valve,ball valve,check ... pipe holder etc... Advantage: Prompt quotation, competitive price, punctual delivery and guaranteed quality. YODSN FLUID EQUIPMENT CO.,LTD",a ISO9001:2008 ... years. Occupies area of over 5,000 s.q.m and the new plant 15,000 s.q.m. under ...