PORTABLE GAS CUTTING MACHINE We are engaged in the manufacturing and development of oxygen & gas equipment. We have contributed to the growth of the national economy by localizing the manufacturing techniques of various automatic cutting machines, CNC automatic cutting machines and their parts, regulators, heaters, etc. Our products have been supplied to various companies in different fields of heavy industry such as shipbuilding in domestic and overseas markets. We continue to make every effort to improve product quality and develop new products based on accumulated experience and theoretical study. The attention and support of you, our valued customers, always inspire us to work hard for better product quality and new product development. Customer satisfaction is the ultimate goal of our business. Big Auto will always prepare for tomorrow.