This is Nanjing Caiyun machinery&Electronical Manufacturing Co.,Ltd. who supply all kinds of machinery parts and components. Like series of gears, gearbox, pinion, worms, worm wheel/turbo/turbine, reducer, casting, forging, etc. We have the technology of gravity casting, die casting, sand casting, investment casting, stamping etc. We also own large amount of excellent staff and advanced machines. Our products have past the ISO9001:2000 quality system certificate. So pls feel free to contact us with your drawings. We will serve you with best quality and best price. And look forward to establish a longterm cooperation relation.