... 2. user change operation location ,more flexible KC-WL250 automatic spot Welding MachineFEATURES: 1. Microprocessor digital control technology, digital IC, synergetic panel, ... With optional different types of spot tools, various function can be realized: single/double sides welding, screws rivets welding, collision repair and etc ... .8-1.2Aluminum wire0.8-1.2 KC-WL250 automatic spot Welding Machine