14 ensp 0183 ensp Zhengzhou shibo mechanical engineering co LTD dedicated to the mining and metals industry technology and equipment research and development production and sales to develop large sand ore dressing new dry process cement and hydrated lime production line host and energy conservation environmental protection equipment and engineering Production Process Mainly for the large size natural river pebble for the whole sand production usually using the jaw crusher cone crusher sand making machine vibrating screen process It is used to treat river pebble sand into a fine mechanical sand that can replace natural sand Customer Revenue 1