... anti-corrosion ISO9001:2008; tolerance: +/-0.0001mm high precision rc worm gear for toy car Specifications:1) ... , German injection molding machines, Japanese and South Korean high-precision CNC lathes, automatic lathes, automatic milling machines, centreless ... instruments for inspection, EDM, high speed CNC machine, Sodick wire EDM, etc. 3)Quality control equipments: roundness meter, projector ...