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HG 20538-1992 衬塑(PP、PE、PVC)钢管和管件
标准编号:HG 20538-1992
标准名称:衬塑(PP、PE、PVC)钢管和管件
文件类型:压缩包格式(.rar)
资料语言:简体中文
标准类别:行业标准
授权方式:免费下载
文件大小:620.00 KB
简介:HG 20538-1992 衬塑(PP、PE、PVC)钢管和管件
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