Dolomite, not calcinecd or sintered(whether or not dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular) 未煅烧或烧结的白云石(不论是否粗加修整或仅用锯或其他方法切割成矩形板、块),
Calcined or sintered dolomite(whether or not dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular) 已煅烧或烧结的白云石(不论是否粗加修整或仅用锯或其他方法切割成矩形板、块),