Home / Standards / GB/T 4513.7-2017 GB/T 4513.7-2017 Active Monolithic (unshaped) refractory products—Part 7:Tests on pre-formed shapes 不定形耐火材料 第7部分:预制件的测定 Standard Type GBT ICS 81.080 CCS Q40 Status 现行 Issue Date 2017-10-14 Implementation 2018-09-01 Responsible Dept 国家标准委 Drafting Unit N/A