Home / Standards / GB 28759-2012 GB 28759-2012 Active Green sand mixer - Safety requirements 粘土砂混砂机 安全要求 Standard Type GB ICS 25.120.30 CCS J61 Status 现行 Issue Date 2012-11-05 Implementation 2013-10-01 Responsible Dept 工业和信息化部 Drafting Unit N/A