Tianjin, Tianjin, China,
1.TianjinZhengyuInternationalTrade Co., Ltd is ahighly technical & comprehensive enterprisespecializing in research, development, casting, machining andinternational sales. 2. Our Foundry has 2 production lines , 2electric furnace (2 tons, 5 ...
cast iron/ductile iron manhole covers, gully grates, casting machine parts, other casting products, steel gratings.
