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1 The performance indicators of scaffold materials and components should meet the needs of scaffold use, and the quality should comply with the current relevant national standards.
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Housing and urban rural development department: from August 1, the construction period of cast-in-place concrete main structure should not
Ppt | construction safety education and training in summer high temperature, rainstorm and typhoon weather
Notice on access construction of heating pipe network in shed reconstruction area on the south side of Xiangyang Street
