Home / Standards / GB/T 18601-2009 GB/T 18601-2009 Abolished Natural granite for building slab 天然花岗石建筑板材 Standard Type GBT ICS 91.100.30 CCS Q21 Status 废止 Issue Date 2009-03-25 Implementation 2010-01-01 Responsible Dept 中国建筑材料联合会 Drafting Unit 中国建筑材料联合会