Home / Standards / LY/T 1569-1999 LY/T 1569-1999 Active 转子式刨花干燥机维修规则 Standard Type LY ICS N/A CCS N/A Status Active Issue Date 1999-08-16 Implementation 1999-12-01 Centralized Committee 国家林业局 Issuing Authority 国家林业局