| 摘要 |
<p>The device has a connection with two rubber seals and a counter nut is fixed to the water flushing boxes at the bottom area, at left, at right, at sideways, or at front. The water flushing boxes possess break points provided at the above named areas. At this connection a ball valve is arranged or a stop- valve is arranged. From this unit a rigid or flexible pipe connector leads to the nozzle holder. These connections are closed by squeezing screw system.</p> |
