Home / Standards / GB/T 35840.2-2018 GB/T 35840.2-2018 Active Steels for plastic mould—Part 2:Pre-hardening steel bars 塑料模具钢 第2部分:预硬化钢棒 Standard Type GBT ICS 77.140.35 CCS H40 Status 现行 Issue Date 2018-05-14 Implementation 2019-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A