The Wuhan Yinyu Investment Casting Co., Ltd.(abbreviated as YYICC) is a specialized leading enterprise in manufacturing various precision castings of carbon steel , stainless steel etc. with high quality. Our company has advanced manufacturing equipments and techniques of investment casting. It covers an area of 25,974 m2, and has total 150 staffs. Our company can produce precision castings of five hundred tons per year. It can produce sewing machine parts, air stapler and nailer parts, pliers tools, drill bit body and stainless castings. It can produce parts and fittings of high precision in measurement, of good surface finish and of complex form as per customers requests. Casting weight is from 5g to 3000g, and superior finish is Ra 1.6~6.3. Our company possesses the imports and exports autonomy, and has passed Quality Management System ISO9001:2000 Certification. We also cooperate with some scientific research institution, such as China Foundry Association and Huazhong University of Science & Technology. Our company constantly improves the production technology, and tries our best to satisfy the requests of clients. At present, our production exports to Japan, U.S.A., Germany and other countries for several years, and gain favourable comments of the foreign clients.