T/CWEC 11-2019 节水灌溉用塑料管材和管件(报批稿)附件大小:6.53MB附件格式:1个直链文件,格式为pdf 资源简介:ICS 83.140.30G33T/CWEC 11-2019节水灌溉用塑料管材和管件Basic parameters and technical requirements of plastics pipes and fittings used for water-sav...
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