Pinion frame is made of galvanized steel sheet, is gearing with teeth accurately, low noise, reliable performance.
The ventilation pinion is an important part of the greenhouse window system, it can be the power of the reducer to the windows to achieve the window opening and closing
|ventilation pinion||1″,Metallurgy pinion, copper bearing||30mm|
|ventilation pinion enhanced type||1″,Metallurgy pinion, copper bearing||30mm|
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