通过焊接额外层，修复金属制品的磨损零件。
Repair worn parts of metal products by welding on extra layers.
一年用的备件，专用工具和容易磨损零件等清单，卖方须提供。
The list of spare parts, special tools and easily worn-out parts for one year the Seller will supply.
负责将工具房，箱和备用零件及磨损零件等归类整理。并保持现场整洁有序。
Responsible for a good condition of the tool shop and the storage location of spare parts and wear and tear parts.
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