Dongguan City Dchang Refrigeration Electrical & Mechanical Engineering Co., Ltd. specializes in polyurethane panl and refrigerating system design, manufacture and installation. Dachang Company is located in Dongguan City, equipped with modern workshop and a complete set of imported CUSBER production line. The business scope of Dachang Company include polyurethane panl, sandwiched panl, modular cod room, display coler & frezer, refrigeration unit and cold rom door including standard hinge ...