Hot sale Jewelry Spot-welding machine(HS-WP 90W) CE/FCC authenticate High efficiency,resolution,stability MACHINE FEATURES for HS- ... used for all kinds of electrical parts and mental materials.Welding graph: point, line, circle, arc, square etcMain advantages for HS ... .4. Spot size of the electric control.5. Both manual welding, but also to achieve mass production of automation products. Technical ...