: It has been choosed by three big famous company when it just comes into market.According to the special requirements of the iron(steel)etching. Zhengcheng specailly designed this line, which has took the advance core of zhengcheng technology(the patent is applying). It has well solved the cost\speed\ quantity\ envieroment protection and so on programm system problem. At the same time, it has greatly solved the company's enviroment press.