Home / Standards / GB/T 18690.1-2009 GB/T 18690.1-2009 Active Agricultural irrigation equipment - Filters for micro-irrigation - Part 1：Terms, definitions and classification 农业灌溉设备 微灌用过滤器 第1部分：术语、定义和分类 Standard Type GBT ICS 65.060.35 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