Home / Standards / GB 10878-1999 GB 10878-1999 Abolished Special taps of taper threads forgas cylinders 气瓶锥螺纹丝锥 Standard Type GB ICS 23.020.30 CCS J74 Status 废止 Issue Date 1999-10-10 Implementation 2000-06-01 Responsible Dept 国家标准委 Drafting Unit N/A