G-TEC Natural Gas Systems (www.gas-tec.com) has named the Independent Welding Distributors Cooperative (www.weldmark.com) as the exclusive distributor for its natural gas pressure booster systems. The company says its torch boosters and refuelers are used in fabricating metals and in other industries. The Independent Welding Distributors Cooperative has more than 650 branch locations throughout the United States. It will sell the G-Tech torch boosters and refuelers that are used to elevate the pressure of standard utility natural gas to pressures high enough to be used for cutting steel, brazing, heating and other industrial applications directly from utility gas lines.