Home / Standards / GB/T 8515-1987 GB/T 8515-1987 Abolished Diesel pile hammer classification 筒式柴油打桩锤分类 Standard Type GBT ICS 91.220 CCS J85 Status 废止 Issue Date 1987-12-29 Implementation 1988-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A