Home / Standards / HG 2010-1991 HG 2010-1991 橡胶球胆 橡胶球胆 Standard Type HG ICS 83.140.99 CCS G47 Status N/A Issue Date 1991-06-27 Implementation N/A Responsible Dept 中华人民共和国化学工业部 Drafting Unit N/A