The test values listed beneath were obtained using 200-250 kgs/cm2 concrete (no aggregate). A safe working load should not exceed 25% of stated value.

• 以安全之锥形外爆塞来膨胀本体，完全不伤内牙，而碳钢之产品，以冷挤压方式成型。能结合各种牙条及六角螺栓和钩形螺丝来合用，安装快速又方便。