1. Non-remote controller cable; Better mobility and fewer disconnection 2. Novel dust-prevent design; Widely used Separate electric and voltage control; Simply centralized 3. Adjustment system; Convenient for beginner and practiced hand 4. Unique flip-flop integrated circuit control system; Stable voltage; Little spatter; Easy shaped 5. Suitable for aluminum, copper, stainless steel and carbon steel welding 6. XMKRII-630 with carbon are gpigomg fimction 7. Complete accessories: welding torch, welding cable, earth clamp, carton box