... Chinese standard)1-2000-60-600mm20°, 25° or according to the customer's requirment.Right or LeftGB7, GB 6, GB 5, GB4Note ... can be 40Cr, 45#, 42CrMo etc.or according to the customer's requirements 2. The worm wheel material can be Brass, CuSn12Ni, QAL10 ... -4,QA15, PA46 etc. or according to the customer's requirements. working shop:manufacture machine of Gleason P60 for hobbing:inspection instrument ...