Home / Standards / HG/T 2478-1993 HG/T 2478-1993 搪玻璃泵用机械密封技术条件 搪玻璃泵用机械密封技术条件 Standard Type HGT ICS 71.120 CCS G94 Status N/A Issue Date N/A Implementation N/A Responsible Dept 发布日期:1993-06-30 Drafting Unit N/A