
Standard Specification for Shielded Transition Couplings Using Flexible Polyvinyl Chloride (PVC) Gaskets to Connect Dissimilar DWV Pipe and Fittings
出版:American Society for Testing and Materials

专家解读视频
Standard Specification for Shielded Transition Couplings Using Flexible Polyvinyl Chloride (PVC) Gaskets to Connect Dissimilar DWV Pipe and Fittings
出版:American Society for Testing and Materials
专家解读视频