Home / Standards / GB/T 33688-2017 GB/T 33688-2017 Active Evaluation method for performance of coal preparation magnetic separator 选煤磁选设备工艺效果评定方法 Standard Type GBT ICS 73.040 CCS D27 Status 现行 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A