选用优质重烧镁砂及其它碱性复合材料，经合理的粒度级配与结合剂、添加剂混合而成。
The product is manufactured by using dead-burnt magnesia . other basic materials and binder through good grain size selection.
该设备广泛在冶金、建材、机械、化工等行业作加热炉之用，特别适用于耐火材料行业耐火制品在各种气氛下的重烧线变化的测试及烧结。
The machine is widely used for heating in metallurgy, building material, mechanical, chemical and so on. It's especially applied to test linear changes of refractory products in every kind atmosphere.
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