Unplasticized PVC ringed pipes.Natural ageing test.
标准/规范英: Agricultural drainage.
Unplasticized PVC ringed pipes.Natural ageing test.
标准/规范英: Agricultural drainage.
gate valves with inside screw stem;
英标题: (Unplasticized polyvinyl chloride (UPVC) valves;
声明:以上例、词性分类均由互联网动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。