Home / Standards / GB/T 26711 GB/T 26711 Active Microporous nib pens 微孔笔头墨水笔 Standard Type GBT ICS 97.180 CCS Y50 Status 现行 Issue Date 2024-10-26 Implementation 2025-05-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会