Qingdao EnQiang Machinery Co,LTD. (QDEQ) is a professional flange, valves, and pipe fittings manufacturer, with more than 14 years history in China, 85% products are exported and have been widely accepted by more than 20 countries. Obtaining ISO9001/ISO14001 certificate, we strictly manufacture and operate as per those requirements. Our factory covers a plant area of 100, 000 Sqm, the annual production capacity is up to 15000 tons, we have experienced staff team, all of them are customer-oriented and glad to provide optimal solutions, besides we have advanced processing and testing equipment to guarantee superior quality and prompt services for clients. We manufacture steel parts complying with DIN, ANSI, JIS, BS, GOST standards etc., products size range from 1/2'' to 200'', also can provide Non-standard parts according to client drawing, to date our products have been widely applied in petroleum, chemical industry, shipbuilding, plumbing engineering etc.