Home / Standards / HG/T 21617-1998 HG/T 21617-1998 槽型锚定轨预埋件通用图 槽型锚定轨预埋件通用图 Standard Type HGT ICS 71.120 CCS G93 Status N/A Issue Date N/A Implementation N/A Responsible Dept 发布日期:1900-01-01 Drafting Unit N/A