HWASHI WL-SPM-100K Customized Nut/Bolt Spot Welding Machine DESCRIPTION: HWASHI WL-SPM-100K Customized Nut/Bolt Spot Welding Machine Multiple times of continuous discharging Be able to finish welding at one time Firm joint No black coating after welding, no oxidation Low cost No need of subsidiary materials Precise mould designed Convenient and simple all-directions adjustment Suitable for welding of multiple types of products.