青岩悬挑梁工字钢固定件新型定位桩钢管外架定位器

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Zhengzhou Qingyan Building Materials Co., Ltd

Address:No. 1502, 15th Floor, Building 1, Yaxing Times Square, Erqi District, Zhengzhou City, Henan Province
Tel:15378775081

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15378775081

青岩 悬挑梁工字钢固定件 新型定位桩 钢管外架定位器