Home / Standards / GB 20557 GB 20557 Upcoming Frozen semen of goat and sheep 羊冷冻精液 Standard Type GB ICS 65.020.30 CCS B 43 Status 即将实施 Issue Date 2025-12-31 Implementation 2027-01-01 Responsible Dept 农业农村部 Drafting Unit 农业农村部