... Good quality but lower price WSM DC TIG/MMA PULSE WELDER, WSM WElDING MACHINEDescriptionDescription♦ Portable,fan-cooled, ... welding seam,suit for the the pipeling and other semiautomatic welding.♦ Multi pulse adjustment function,fast pulse current upward and ... downward speed,good looking welding seam,suit for the pipeling ...