国产在线观看99,亚洲国产另类久久久精品小说,青青青手机在线观看,国产偷倩在线播放,日韩精品亚洲专区在线电影不卡,97福利电影,四虎国产精品免费观看

The company is located in Shijiazhuang new and high-tech zone, adjacent to Shijiazhuang recycling chemical industry zone. The company covers an area of 6,800 square meters, building area of 2,300 square meters, equipped with first-class laboratory. The company has more than 110 employees, including 11 professional and technical people. After more than ten years of ups and downs, the company has become a high-tech company integrating research and development, production and sales. The company produces 30,000 tons of "Weifeng" brand sodium metabisulfite, 10,000 tons of sodium bisulfite and 5,000 tons of anhydrous sodium sulfite annually.