Zhejiang Changtai Machinery Co. , Ltd. Was Founded In January 1973, Specializing In The Production Of Gears Shaft As The Main Products, Auto Transmission, Machinery, Large Thansfer, Gear Box, Mechanical Engineering Gearbox, Marine Gearbox, Textile Machinery Parts, Shaft. And Has Passed ISO9001- 2000, ISO14001- 1996, ISO16949 Etc System Authentication, Has Been Awarded "provincial High- Tech Enterprise", "provincial Famous Trademark", "city Civilization Unit" And So On The Title.