Profile: United Welding Services, Inc. produces drawer slide boxes. Our truck boxes include blue series, black series, red series, secure lock box and accessories. Our secure lock toolbox comes with stainless steel latches with an easy twist opening that is accessible from both sides. Our drawer system consists of five precision-injected commercial grade plastic drawers. Our rectangle tank is designed to transport non-potable water and diesel fuel used in contractor, agriculture, government and other commercial applications.