Home / Standards / GB/T 1209.3-2009 GB/T 1209.3-2009 Active Agricultural machinery - Cutter bars - Part 3:Knife sections, ledger plates and knife backs 农业机械 切割器 第3部分：动刀片、定刀片和刀杆 Standard Type GBT ICS 65.060.50 CCS B91 Status 现行 Issue Date 2009-11-30 Implementation 2010-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A