1. material: brass; 2. diameter:0-400; 3. Z=1-200, M=0-6; 4. quality: ISO 5, ISO ... 8S\CW\WH\WP Series ReducerNote: 1.The worm shft material can be 40Cr, 45#, 42CrMo etc ... to the customer's requirements 2. The worm wheel material can be Brass, CuSn12Ni, QAL10-4,QA15, PA46 etc ... and hardening, Quench and temper, Medium and high frequency .Company outlook::Gleason P60 hobbing machine:Inspect center: ...