硬聚氯乙烯(PVC-U) 管材—外径和壁厚极限偏差
Unplasticized polyvinyl chloride (PVC-U) pipes--Tolerances on outside diameters and wall thicknesses
标准状态
发布于:1991-07-03
实施于:1992-04-01
已废止
Unplasticized polyvinyl chloride (PVC-U) pipes--Tolerances on outside diameters and wall thicknesses