
Double-socket Fittings For Unplasticized Poly(vinyl Chloride) (pvc-u) Pressure Pipes With Elastic Sealing Ring Type Joints - Minimum Depths Of Engagement
出版:Swiss Standards

专家解读视频
Double-socket Fittings For Unplasticized Poly(vinyl Chloride) (pvc-u) Pressure Pipes With Elastic Sealing Ring Type Joints - Minimum Depths Of Engagement
出版:Swiss Standards
专家解读视频