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Dimensions-of-blind-flanges-EN-1092-1-pn-6参考标准规范
HEBEI HAIHAO GROUPISO.ABS.CE/PED APPROVEDMengcun,Cangzhou,Hebei,ChinaProfessional Steel Piping SolutionHAIHAO GROUPwww.haihaopiping.comEmail:sales@haihaogroup.comBlind Flanges-EN 1...
CJJ1-2008城镇道路工程施工与质量验收规范
中华人民共和国行业标准城镇道路工程施工与质量验收规范Code for construction and quality acceptance ofroad works in city and townCJJ1-2008J792-2008批准部门:中华人民共和国住房和城乡建...