泥浆护壁冲孔灌注桩
pound piling with hole slurry protected
冲孔嵌岩灌注桩
Rock-socketed Casting Pile
PE管冲孔
the punching of holes in PE pipe
无凹模冲孔
punching of pipe free of cavity die
微波稀布阵综合脉冲孔径雷达
microwave sparse-array SIAR
三面冲孔生产线
Production line with punch in three s ides