标准下载ICS53.040.20CCSG42团体标准T/ZZB3449—2023低压陷滚动阻力节能钢丝绳芯输送带LowIndentationrollingresistanceenergy-savingsteelcordconveyorbelt2023-11-15发布2023-11-25实施浙江省质量协会发布标准下载标准下载T/ZZB3449—2023I目次前言.................................................................................II1范围.......................
