| Qinhuangdao Yutian Science and Technology Co., Ltd. QinHuangDao Yutian Science Technology Co., Ltd. is the manufacturer of the metallurgical valves, metallurgical vehicles, pressure vessels, investment casting equipments and metal expansion joints. Key items: hot blast valve, swing goggle valve, ... We are regularly Selling: metal expansion joints, investment casting machine, wax injection machine, automatic dewaxing autoclave, metallurgical valves, metallurgical vehicles, pressure vessel products, hot blast valve, iron ladle carflat car. Member since 19 September, 2007, China - Hebei |