Ring gear 1)Material:brass,ASTM 1045,20CrMnTi,45# Carbon Steel,GGG60,Iron Casting 2)weight:1-15kgs 3)Process:machining Ring gear1)Material:brass,ASTM 1045,20CrMnTi,45# Carbon Steel,GGG60,Iron Casting2)weight:1-15kgs3)Process:hot or cold forging,heat treatment can be required.4)widely used in sorts of transmission system.5)materials and precision can be as requirement6)OEM is acceptable We have ...