Home / Standards / GB/T 39697.2-2020 GB/T 39697.2-2020 Active Rubber or plastics covered rollers—Specifications—Part 2:Surface characteristics 橡胶或塑料包覆辊 规范 第2部分:表面特性 Standard Type GBT ICS 83.140.99 CCS G47 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A