XUANDA.XUANDA was founded in 1990 with a registered capital of RMB 200.68 million, focusing on four major fields: industrial pumps and valves, chemical equipment, special metal materials and general contracting for environmental protection projects. The main products include special metal valves (such as ball valves, butterfly valves, gate valves, etc.), corrosion-resistant pumps, pressure vessels and complete sets of sulfuric acid chemical equipment, covering lined valves, high-temperature alloy valves and other subcategories, which are widely used in the chemical industry, environmental protection and other industries.