
Water main and water distribution systems — PVC-U 6,3 plastic pipes and fittings with elastic joints and with nominal diameter until DN 100 Part 5: Requirements for fittings
出版:Brazilian Standards

专家解读视频
Water main and water distribution systems — PVC-U 6,3 plastic pipes and fittings with elastic joints and with nominal diameter until DN 100 Part 5: Requirements for fittings
出版:Brazilian Standards
专家解读视频