... price,service on time 3.Durability and wearability Crown wheel and pinion features:Excellent heat distortion controlHigh strengthWear resistance property ... keyseating,drilling,hobbing,grinding,milling & honing.Industrial roller chain of sprocket style are simplex, duplex , triplex and quadruple ... europe , south east asia, middle east and north of america.Material can requested by customer such as 1045 ...