Hangzhou huada jet vacuum equipment CO.,Ltd, Our company was founded in 1991,designated by the country as a specialized steam jet vacuum pump manufacture , we had involved the regulatory the standardization of vacuum equipments . We had 2 monopolies of the country , none but we had experimentation terrace for jet pump. Our company has passed ISO9001:2000 quality management system certification ,we own a strong R&D Group、advanced performance、reliable assurance quality management、advanced processing crafts , and complete testing method ,we are the...