1.TS16949:2009 certificated; 2.18 years gearbox shaft supplier;3. mainly exported to United States; 4.more ... than 400 workers; Products ranges: Ningbo tiansheng shaft co.,ltd, founded in 2001, is specialized in the production ... than 60 million sets. Main products include: spline shaft, steps shaft, worm shafts, bushings, motor shaft, eccentric shaft, etc., mainly applied in lawn mower and ...