Home / Standards / GB/Z 18620.4-2008 GB/Z 18620.4-2008 Active Cylindrical gears - Code of inspection practice - Part 4: Reommendations relative to surface texture and tooth contact pattern checking 圆柱齿轮 检验实施规范 第4部分:表面结构和轮齿接触斑点的检验 Standard Type GBZ ICS 21.200 CCS J17 Status 现行 Issue Date 2008-03-31 Implementation N/A Responsible Dept 国家标准委 Drafting Unit N/A