板材冲压成形
punch and formation of sheets
板料冲压数值模拟
Numerical Simulation for Sheet Stamping
薄板冲压成形
Sheet metal forming
sheet metal punching forming
产品在龙华冲压厂制造作业规范
CMCS C-China M-Manufact C-Compaq S-Stamping Compaq
超音速冲压喷气发动机
Supersonic combustion ramjet engine