Portable C Type Spot Welder Machine The portable C type spot welder is designed for firm sheet metal welding with easy one-hand operation. Its lightweight body and flexible cables allow operators to weld door panels on site without moving heavy workpieces, reducing labor cost and improving efficiency. Key Features - Firm Welding & Labor Cost Reduction Portable lightweight design, one-hand easy operation Firm welding quality for sheet metal and door panel repair Reduces labor