
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

專家解讀視頻
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
專家解讀視頻