... fluxes 3. weld only takes seconds SZ-3TR Desktop cold pressure welding machine/ cable welding machine1. no need of heat or electricity ... -34. Advantage: No power, no heat, no electricity, light, easy to operate, welding just one minute. 5. Overall dimensions: 300mm* 190mm ... metals be welded using cold pressure? Cold welding can be used to join dissimilar materials, such as aluminum to copper.9. It can ...