The new goods consist of a sequence of high-tech and large high quality chains and sprockets and gears, such as chains and gearboxes for agricultural machineries, metallurgical chains, escalator phase-chains, large-speed tooth chains, timing chains, self-lubrication chains, between which have type large pace tooth chain for car branch dynamic box and aerial chains fill in the blanks of chain in China. In this way, our goods have ongoing to obtain industry acceptance and buyers gratification above the earlier handful of years. we provide 1-cease remedy for the purchase of mechanical electrical power transmission goods in China.