1.steel spline gear shaft for car gearbox 2.Standard: ASTM, AISI, BS, DIN, JIS, NF 3. ... 100%QC Detail Feature: steel spline gear shaft for car gearbox Product Name: steel gear shaftMaterials: grey iron, ductile iron ... - Standard: ASTM, AISI, BS, DIN, JIS, NF Main production equipments: Wax injection, CNC-machine, machine-center, Heat treatment Furnace 1) We ...