
Iso 4433 Thermoplastics Pipes - Resistance To Chemical Fluids - Classification - Part 3: Unplasticized Poly(vinylchloride) (pvc-u) Pipes
出版:British Standards Institution

专家解读视频
Iso 4433 Thermoplastics Pipes - Resistance To Chemical Fluids - Classification - Part 3: Unplasticized Poly(vinylchloride) (pvc-u) Pipes
出版:British Standards Institution
专家解读视频