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湖北公元建材（服務熱線17399989993）專業生產DN300口徑PE中空壁纏繞管，展示A型結構壁管材生產實拍及GB/T 19472.1國家標準認證，通過SN12.5環剛度檢測及ISO 9001質量體系認證，適用于海綿城市建設、綜合管廊等大型市政工程，提供第三方抗壓強度檢測報告
L?i th? s?n ph?m
?ng cu?n t??ng r?ng pe ?ng DN300 SN12.5 M? phun và ?nh s?n ph?m
2025-05-10
