
Bs En 638 Plastics Piping And Ducting Systems - Thermoplastics Pipes - Determination Of Short-term Tensile Properties (possible Revision Of Bs 2782: Part 11: Method 1110: 1989) (pren 638)
出版:British Standards Institution

专家解读视频
Bs En 638 Plastics Piping And Ducting Systems - Thermoplastics Pipes - Determination Of Short-term Tensile Properties (possible Revision Of Bs 2782: Part 11: Method 1110: 1989) (pren 638)
出版:British Standards Institution
专家解读视频