HL is a national steel structure manufacturer with Grade First Qualification of Engineering. HL has obtained the ISO9001 Quality System Authentication. HL is a professional steel structure manufacturer in Liaoning Province. HL company could supply mobile house, modular construction house and steel construction building. HL integrates design, production and installation. HL has successfully developed a production line of seamless steel pipe. HL steel structure company could supply the project accessories including rigid frame, high strength bolt, daylighting panels, angle brace, tie bar, tension bar, color steel plate for decoration and other products.