Qingyun Qiansheng Machinery Manufactory Co.,Ltd specializesin manufacturing of investment casting of stainless steel, carbonsteel and low alloy steel. The products are mainly pipefittings, valves, flanges, qucik join, sanitary union,press-fitting adapters and so on. The company covers 13,500 squaremeters with annual output capability of 600 tonswith allsilica sol process, heat treatment and CNCmachining.     Equipped advance was circling system and auto-movingdrying system which are features effective different from othercasting factories. Each of batches of furnace analyzed bysoectrometer inspecting the material chemical compostion of theparts. All products are made from the best material with high levelof workmanship and the high quality control program which ensuresproducts to carry American standard(ANSI), Japanesestandard (JIS) and Germany standard(DIN) and soon.    The company offers OEM service of investment casting and CNCmachining, special parts can be made to order according tocustomer's dimensions, drawings and samples. Because of thespecial high-tech production process, we canoffer reasonableprice, better quality and prompt delivery.Greatly welcome the friends and customers come to visit ourfactory.