spot welder造句

1、BDN series thin metal belt spot welder is specially designed for joining with thin metal belt.
系列金属薄带专用点焊机是一种为金属薄带连接的专用设备。

2、This series spot welder is small and light. Both welder and welding torch can be moved.
该系列移动电焊机，体积小、重量轻；焊机、焊枪都可以移动。

3、And category of spot welder and basic property of equipments are discussed.
并简述点焊机的分类和不同设备的基本特性。