Dalian Shuangyi Metal Products Co. , Ltd. was founded in 2016 , specializing in the manufacturing and sales of machinery and environmental protection equipment , steel structure welding processing and assembly. The annual processing capacity of welded steel is 1500-2000 tons , which is mainly exported to Japan , have a good understanding of the production process of Japanese customers. The factory covers an area of 6000 square meters , has 35 employees , |