Natural sodium borates and concentrates thereof(whether or not Calcined), not including borates separated from natural brine 天然硼砂及其精矿(不论是否煅烧,不含从天然盐水析离的硼酸盐),
Other natural borates and concentrates thereof (not including borates separated from natural brine); natural boric acid containing not more than 85% of H3BO3 calculated on the dry weight 其他天然硼酸盐及精矿;天然粗硼酸,含硼酸干重不超过85%,