Robotic Welding go Results Found: 2 Button group with nested dropdown Rotochopper, Inc. CMMA Rotochopper, Inc. 217 West Street St. Martin MN 56376 (320) 548-3586 C4 Welding, Inc CMMA C4 Welding, Inc 11 Industrial Blvd Sauk Rapids MN 56303 (320) 253-2699