1907 建筑用耐火材料及制品
石棉灰泥190005, 耐火土190048, 耐火材料熟料190048, 防火水泥涂料190056, 防火用水泥涂盖层190056, 耐火材料190159 ※耐火砂C190015, 耐火纤维C190016, 硅酸铝耐火纤维C190017, 耐火砖、瓦C190018, 陶瓷纤维棉、毡C190019, 矽砂C190020, 矽砂火泥C190021, 粘土火泥C190022, 镁泥C190023, 炉用耐火材料电炉瓷盘C190024, 陶瓷窑具C190025