Home / Standards / GB/T 17617-1998 GB/T 17617-1998 Abolished Refractory products--Sampling of raw materials and unshaped products 耐火原料和不定形耐火材料 取样 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 1998-12-11 Implementation 1999-07-01 Responsible Dept 国家标准委 Drafting Unit N/A