Home / Standards / GB/T 33878-2017 GB/T 33878-2017 Active Steel cross wedge rollings—Technological design principle 钢质楔横轧件 工艺编制原则 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2017-07-12 Implementation 2018-02-01 Responsible Dept 国家标准委 Drafting Unit N/A