Home / Standards / GB/T 18257-2000 GB/T 18257-2000 Abolished Refractory bricks for use in rotary kilns--Hot-face identification marking 回转窑用耐火砖热面标记 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2000-11-17 Implementation 2001-06-01 Responsible Dept 国家标准委 Drafting Unit N/A