Our co***ny Tianjin Zhongdeli Steel Pipe Manufacturing Co., LTD has one subsidiary corporation called Tianjin Helitong Metal Material Co., LTD. We are entitative enterprises, we set product development, manufacturing, technical services and trade into an integrated whole co***ny.
Our co***ny specializes in producing and managing different kinds of steel pipes as well as a wide range of steels, such as: spiral steel pipe , galvanized steel pipe , square steel pipe , rectangular steel pipe ,seamless st...
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