The product, "Study on procedure and properties of Co_2+ N_2 arc surfacing," falls under the category of Machinery & Industrial Supplies and Metal Processing Machinery. It is manufactured by Dalian Longsheng Metallurgical Equipment Manufacturing Co. Ltd, a company based in China. This product is specifically designed for surfacing welding, built-up welding, and cladding welding applications.

The process of surfacing involves the application of a hard, wear-resistant layer of metal onto worn-out parts, such as machines, tools, forged rolls, and construction equipment. It is an economical method that helps conserve and extend the lifespan of various equipment. Dalian Longsheng Metallurgical Equipment Manufacturing Co. Ltd, established in 2014, is a renowned manufacturer in the field, with a registered capital of 20 million RMB.

The company possesses a well-qualified team of professionals, including skilled employees, welding engineers, and technicians, who have expertise in metallurgy, mechanical equipment, shipbuilding, ocean drilling, high-rise buildings, and metal structures. With its advanced production equipment and testing facilities, the company ensures the production of high-quality products.