Criss-cross grooves design enhance water evacuation, effectively prevent tire lateral slip on wet road.
Central rib combined with horizontal grooves provides nice stability, excellent acceleration and brake performance at high speed.
Low levels of noise and vibration for maximum comfort.
Low rolling resistance reduces fuel consumption.
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Fire damper selection of the main control parameters for the specifications. 2. Fire dampers are suitable for ventilation and air conditioning systems. Except for fire dampers used in kitchen exhaust fume systems of public buildings, the operating temperature of the fire dampers for general ventilation and air conditioning systems is 70°C. 3. Fire dampers are suitable for ventilation, air conditioning or exhaust system piping. 4. When selecting the valve, pay attention to the function of the valve, such as normally open or normally closed, automatic closing and opening, manual closing and opening, manual reset, signal output, and remote control. 5. If the valve and the fan linkage should be used with double micro switch device. 6. The valve body blade should be steel plate with a thickness of 2~6mm. The valve body should be made of non-combustible material. The rotating part should be made of corrosion-resistant metal material and be flexible. The thickness of the valve shell should not be less than 2mm. Yirong parts should meet the approval standards of the fire department.