火线传奇第一季11集，"Shanghai Autotight Valve & Fitting Co. Ltd. is a professional and diversified valve manufacturer specializing in ball valve gate valve globe valve non-return valve butterfly valve pipe fitting sanitary valve etc. Available in a wide range of sizes and materials these valves are specifically designed for Chemical Industry Stainless Industry Medicines Food Science and Technology environment-protection Industry.The area of factory building is more than 40000M2. (the new factory zone is under construction). We are certified ISO9001-2000 CE and API6D. The products have been exported to U.S.A. Europe Middle East Southeast Asia etc. As always our objective is to be your preferred partner and supplier through providing you with products that are engineered to meet your exacting requirements delivered on time with a commitment to through-life support and above all to the quality standards demanded in today’s busi。