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A control knob is added to the fire extinguisher designed by us. The control knob can be adjusted according to the specific fire conditions to change the fire extinguisher's bulk range and scope and the effects of fire fighting can thus be maximized.
The more upper the knob pointer is, the larger the bulk range of the fire extinguisher will be and the more concentrated the bulk point.
The more upper the knob pointer is, the more limited the bulk range of the fire extinguisher will be and the wider the bulk point.
Henan University of Technology
School of Design and Art
Zhengzhou / Henan, China