Automatic two helical pitch worm structure of fire water monitor
The utility model provides an automatic two helical pitch worm structure of fire water monitor, includes organism, plum coupling and feed pipe, organism one side is equipped with step -by -step gear motor, and adjusting nut is installed to the organism opposite side, has two helical pitch worms at o...
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| Format: | Patent |
| Sprache: | chi ; eng |
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