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1·Shanghai Welding & Cutting Tool Works is the biggest specialized manufacture of welding & cutting tools in China.

上海剑丰焊割厂是国内最早的焊割设备专业生产。

2·The structure and production process flow of spray welding rollers have been introduced in detail. The specific scheme has been given for selecting the cutting tool and parameter.

详细介绍了喷焊辊子的结构、生产工艺流程。对机械加工时刀具的选择及切削参数的选择给出了明确方案。

3·As a machine tool, the laser beam has been found useful in cutting, drilling, and welding metals.

激光束作为一种“工作母机”，在切割、钻空和焊接金属方面已发现是非常有用的。