Manufacturer of trailer light and brake testing equipment - Square Wheel Industries For more than 20 years Square Wheel Industries has supplied trailer light and brake testing equipment to the trucking and RV industries. Our equipment can be found in any size operation, from the assembly plants of some of our nation's largest trailer manufacturers to a person running a mobile service truck out of his home. Squarewheelindustries.com~Site InfoWhoisTrace RouteRBL Check
