Home / Standards / GB/T 13576.2-2008 GB/T 13576.2-2008 Active Buttress threads with the flank angles of 3 and 30 degrees - Part 2: General plan 锯齿形(3°、30°)螺纹 第2部分：直径与螺距系列 Standard Type GBT ICS 21.040.30 CCS J04 Status 现行 Issue Date 2008-07-30 Implementation 2009-02-01 Responsible Dept 国家标准委 Drafting Unit N/A