Changzhou Zhengyang Welding Material Co., Ltd. is a professional manufacturer of gas-shielded welding wire, submerged arc welding wire and special welding materials. 80% of our products are exported to Europe, America, the Middle East, Southeast Asia and other countries and regions.We hold domestic advanced production equipment and technology, and have implemented a quality control system in accordance with ISO9001 guidelines. We strictly control the quality of our products and pay more attention to developing new work. Our products have been successfully approved by the China Classification...