Home / Standards / LY/T 1345-1999 LY/T 1345-1999 Abolished 主要针叶造林树种种子园营建技术 Standard Type LY ICS N/A CCS N/A Status Abolished Issue Date 1999-08-16 Implementation 1999-12-01 Centralized Committee 国家林业局 Issuing Authority 国家林业局