• 空心砖

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1. The demolition of hollow brick structure by multi point air coupling blasting is introduced.
   介绍了采用多点空气耦合爆破拆除技术对空心砖结构实施定向爆破。
2. All sorts of hollow bricks using the vacuum brick extruding press produced by our factory.
   用我厂真空砖机生产的各种型号空心砖。