Shenyang Liming Mechanical Component Factory is a factory specializing in manufacture of helicoil thread inserts and their associated tools as well as metal piston ring.The factoryhas got ISO9001-2000 certificatein 2002. She has has been entitled"Liaoning province best honesty & honor corporation" in 2005. Mr.Shi Wen Xiang of factory director has designed and developed the first screw thread inserts of china in 1965 and drafted out and compiled the first standard of screw thread inserts of china-HB5513-5516-80.Because of the two scientific research production, he wins aviation industry ministry scientific advancement award in 1979 and 1980. Director Mr.Shi Wenxiang passes by several decade continuously investigate, piles up abundant experience, and organizes manufacture in person. Make quality and technology of screw thread inserts improved. Products realize automatization, efficiency high, quality good, were widely applied aerospace (spacecraft carrier rocket “Shenzhou Five” “Shenzhou Six” airship), aviation, automobile, chemical, electronics etc. Quality is root, technology is forerunner. Our factory keep continual innovation, continue to improve product's quality, and develop steadily. We will offer the perfect products and service to all customers.