Home / Standards / GB/T 4490-2009 GB/T 4490-2009 Abolished Conveyor belts with textile carcass - Widths and lengths 织物芯输送带 宽度和长度 Standard Type GBT ICS 53.040.20 CCS G42 Status 废止 Issue Date 2009-04-24 Implementation 2009-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A