Customized large cast ball mill gear/ шестерня girth gear is the main part of rotary kiln and ball mill, which needS to drive with the shell for the long time rotation,so the quality of the gear ring will be required very high in the actual manufacture. Our company can produce different type gear ring accroding to the customer's drawing and requirments. Please feel free to inquiry us with your drawing if demanded. Skype:+86 18642196671 Mob/wechat: 18642196671 [email protected]