... 4.more than 400 workers; Products ranges: Ningbo tiansheng shaft co.,ltd, founded in 2001, is specialized in the ... cylindrical grinder (20), rolling mill, hydraulic press, one set of heat treatment equipment, Detection equipment is: the surface ... million sets. Main products include: spline shaft, steps shaft, worm shafts, bushings, motor shaft, eccentric shaft, etc., mainly applied in lawn mower ...