Home / Standards / GB/T 18776-2002 GB/T 18776-2002 Active Tolerance dimensions--Conversion form inches into millimetres and vice versa 公差尺寸 英寸和毫米的互换算 Standard Type GBT ICS 17.040.10 CCS J04 Status 现行 Issue Date 2002-07-15 Implementation 2003-01-01 Responsible Dept 国家标准委 Drafting Unit N/A