Duowei Union Group’s main products include: energy-saving polyurethane boards, new-type rock-wool and glass-wool boards, color-coated steel pressure plate, color steel sandwich panels, composite slabs, mobile homes and steel structure products, etc. As a famous brand in the steel structure for the past decades, is now a leader of China’s new energy-efficient building board industry, and one of the most outstanding comprehensive service providers of steel structure systems.