
Standard Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures
出版:American Society for Testing and Materials

专家解读视频
Standard Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures
出版:American Society for Testing and Materials
专家解读视频