Home / Standards / GB/T 7320-2008 GB/T 7320-2008 Abolished Refractories - Determination of thermal expansion 耐火材料 热膨胀试验方法 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2008-06-03 Implementation 2008-12-01 Responsible Dept 国家标准委 Drafting Unit N/A