国产剧情在线视频_日韩黄色在线高清_亚洲色免费在线网站_国产精品永久免费高清_国产2021成人精品_午夜一级无码视频播放器_av少妇激情中文字幕_胸大美女又黄的网站_厨房掀开馊了裙子挺进电影_黄色网站在线播放你懂的






industrial salt

    Industrial salt is widely used in industry and is one of the most basic raw materials in the chemical industry. It is called the "mother of the chemical industry." The main products of basic chemical industry, hydrochloric acid, caustic soda, soda ash, ammonium chloride, chlorine, etc. are mainly used industrial salt as raw material.
    Industrial salt refers to the original salt, salt lake salt, well salt and sea salt points, which because of sea water into a variety of elements dissolved in water, so the industrial value of sea salt is relatively higher, lower edible value.





  Previous product: Perchlorethylene
  Next product: Sodium ethoxide