CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf

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CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf_第1页
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CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf_第2页
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CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf_第3页
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CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf_第4页
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CECS 223-2007 Technical specification for buried spirally wound corrugated polyethylene with ribbed steel reinforced pipes of sewerage engineering《埋地排水用钢带增强聚乙烯螺旋波纹管管道工程技术规程》.pdf_第5页
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