The Shuangyi Phosphorus Chemical Co., Ltd. of Lulong County is located in the beautiful coastal city of Qinhuangdao, covering an area of 40,057.80 square meters and a building area of 10,343.00 square meters. It is a member of the Hebei Province Sulfuric Acid Industry Association and the Engineering Technology Research Center for Sulfuric Acid Products in Qinhuangdao City. The company was originally the Lulong County Phosphate Fertilizer Factory, established in 1973, and was restructured into a cooperative stock company in 1997. Our company adheres to the philosophy of mutual benefit and continues to pursue technological innovation, environmental protection, and sustainable development. After years of research and development, our annual production capacity now includes: 50,000 tons of common sulfuric acid, 10,000 tons of refined sulfuric acid, 10,000 tons of 115% sulfuric acid, 20,000 tons of 50% reagent sulfuric acid, 10,000 tons of food additive sulfuric acid, 30,000 tons of refi...