Home / Standards / GB/T 4678.7-2017 GB/T 4678.7-2017 Active Diecasting dies—Components—Part 7: Straight guide bush 压铸模 零件 第7部分:直导套 Standard Type GBT ICS 25.120.30 CCS J46 Status 现行 Issue Date 2017-09-29 Implementation 2018-04-01 Responsible Dept 国家标准委 Drafting Unit N/A