镁砖

QMZ 89 MgO % ≥ 89 QMZ 91 MgO % ≥ 91 QMZ 95 MgO % ≥ 94.5 QMZ 96 MgO % ≥ 95.5 QMZ 97 MgO % ≥ 96.5 QMZ 98 MgO % ≥ 97.5 QDMZ 95 MgO % ≥ 95 QDMZ 96 MgO % ≥ 96 QDMZ 97 MgO % ≥ 97 QDMZ 98 MgO % ≥ 97.5 QMGZ 12 MgO % ≥ 75