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“Complete sincerity can affect even metal and stone”

Zhengda peoples hardworking receive praise from all the industry from society, and gain the trust from nationwide clients.
"Tianhong"qualified galvanized pipe, spiral pipe, square and rectangular pipe,steel-plastic
composites pipe were used in major construction projects of nation, province and city.

Three Gorges Dam

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Qian'an Zhengda: North of Shuangma Road, Zhaodianzi Town, Qian'an, Tangshan, Hebei Province

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