... have R&D department Hebei Zhixin Machinery Manufacture Group Co., Ltd. based on coke oven care equipment, Furnace accessories ... Zhongbo Heavy Industry Machinery&Equipment co,Ltd.Cangzhou Zhibo Machinery co,Ltd. And Cangzhou Xinghe Machinery&Castings Co,Ltd( with a total area of ... iron, ductile iron, heat-resistant corrosion-resistant cast iron, carbon steel, alloy steel, gray cast iron, chromium and ...