About

About Dotul/Global Sales Group Inc About Dotul / Global Sales Group Dotul's 20th Anniversary 2004~2024 Dotul specializes in manufacturing machinery to build stile and rail entry doors and prehanging machinery for interior and exterior entry doors. Visit www.dotul.com for more information. Global Sales Group is an industrial woodworking machinery and tooling distributor. Please visit our other company website regarding solutions for renewable energy. www.BiomassSystemsSupply.com About Dotul / Global Sales Group Global Sales Group Inc. is an industrial woodworking machinery and tooling distributor, with two business divisions. Dotul, which specializes in manufacturing stile and rail door machinery along with prehung door machinery. Biomass Systems Supply, which specializes in machinery that will use biomass as a fuel to create heat, electrical power or cooling. To learn more please visit our web sites. Dotul's 20th Anniversary 2004~2024 Dotul specializes in manufacturing machinery to build stile and rail entry doors and prehanging machinery for interior and exterior entry doors. Visit www.dotul.com for more information. Global Sales Group is an industrial woodworking machinery and tooling distributor. Please visit our other company website regarding solutions for renewable energy. www.BiomassSystemsSupply.com