Home / Standards / HG/T 2181 HG/T 2181 酸碱用口形圈橡胶材料 酸碱用口形圈橡胶材料 Standard Type HGT ICS 83.040 CCS G35 Status N/A Issue Date 2009-12-04 Implementation N/A Responsible Dept 发布日期：1991-12-23 Drafting Unit N/A