■■■产品1（手选分级）主要理化指标（%）品级SiO2CaOFe2O3LOSSMgOAl2O3SP规格≥≥≤≤≤≤≤≤MM针状49-5144-460.21-1.60.80.80.0010.00130-100精釉级49-5144-460.21.6-2.50.80.80.0010.00130-100釉级49-5142-440.230.80.80.0010.00130-100精冶金级49-5144-460.21.5-2.50.80.80.0010.00130-100冶金级45-5638-430.24.5-5.50.80.80.0010.00130-100瓷坯级45-5638-430.24.5-5.50.80.80.0010.0010-8)