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认识常用低压电器Understanding Common Low-Voltage Electrical Appliances

File Type：pptx
Size： 5kB

焊接知识 Welding Knowledge

File Type：mp4
Size： 328kB

先进焊接技术 Advanced Welding Technologies(1)

File Type：pptx
Size： 25kB

焊接基础知识 Fundamentals of Welding

File Type：pptx
Size： 36kB

焊接安全常识 Welding Safety Fundamentals(1)

File Type：pptx
Size： 32kB

7Waterproofing Works

File Type：pptx
Size： 6kB

8.1 Classification of Steel Bar -Translation

File Type：pptx
Size： 1kB

8.2 Acceptance of Steel Bar -Translation

File Type：pptx
Size： 9kB

8.3 Reinforcement Construction - Thickness of Concrete Cover -Translation

File Type：pptx
Size： 35kB

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