Korea lignite

英 美
  • 朝鲜褐煤
    1. Lignite oil is creosote derived from lignite tar.
      褐煤油是从褐煤中得来的防腐油。
    2. Lignite and peat show acid when mixing with water.
      褐煤和泥炭遇水后呈现酸性。