Home / Standards / GB/T 18749-2019 GB/T 18749-2019 Active Specification for chemical-resistant ceramic tower packings 耐化学腐蚀陶瓷塔填料技术条件 Standard Type GBT ICS 71.120;81.060 CCS G94 Status 现行 Issue Date 2019-12-10 Implementation 2020-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A