Guangzhou Hecheng Tiangong Machinery Co., Ltd. can research and develop independently. Our company specializes in making and selling metal plate processing machinery to customers from all over the world. Our main products include ductwork making machines, notching & folding & rolling machines, roller head machines and spin forming machines. Furthermore, we have non-standard machines and automatic special production lines. Our products are featured with complete specifications and varieties, and are widely applicable for processing various kinds of metal plates. Among them, spiral duct...