
Pipes and fittings of plastics materials - Fittings for domestic and industrial waste pipes - Basic dimensions: Metric series Part 1: Unplasticized poly(vinyl chloride) (PVC-U)
出版:International Organization for Standardization

专家解读视频
Pipes and fittings of plastics materials - Fittings for domestic and industrial waste pipes - Basic dimensions: Metric series Part 1: Unplasticized poly(vinyl chloride) (PVC-U)
出版:International Organization for Standardization
专家解读视频