Home / Standards / GB/T 4490-1994 GB/T 4490-1994 Abolished Conveyor belts--Dimensions 输送带尺寸 Standard Type GBT ICS 53.040.20 CCS G42 Status 废止 Issue Date 1994-12-22 Implementation 1995-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A