Home / Standards / GB/T 44970-2024 GB/T 44970-2024 Active Grain and oil machinery—Air cushion belt conveyor 粮油机械 气垫带式输送机 Standard Type GBT ICS 67.260 CCS X91 Status 现行 Issue Date 2024-11-28 Implementation 2025-06-01 Responsible Dept 国家粮食和储备局 Drafting Unit N/A