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 ... miller, vertical drill machine, bench drill machine,normal lathe, line cutter etc.7. Testing equipment (foundry used): elongation tester, hardness tester ...