Home / Standards / YB 4024-1991 YB 4024-1991 Active 耐火泥浆荷重软化温度试验方法(升温法) Standard Type YB40 ICS N/A CCS N/A Status Active Issue Date 1991-05-03 Implementation 1992-01-01 Centralized Committee 冶金工业部 Issuing Authority 冶金工业部