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當車輪接觸到塑料路障時，由于行駛中的壓力，使車輪壓向塑料路障上的鋼針，膠套內的鋼針會隨移動方向刺入車胎。氣壓輪胎會使鋼針與路障分離。車輪繼續(xù)轉動，使車胎上鋼針越刺越深。車胎中氣體便從鋼針內孔泄出。一般將有四至六枚鋼針的刺入車胎，30秒時間內氣體全部放出。達到有效截停車輛的目的。

Stainless steel manual tire breaker has the characteristics of pre-assembly, recycling, free retraction, safe and effective, large road coverage, adaptable, light weight, portable, easy to use, etc. It is the preferred equipment for road traffic control.

When the wheel touches the plastic barricade, due to the pressure of driving, the wheel presses against the steel needle on the plastic barricade, and the steel needle inside the rubber sleeve will pierce into the car tire with the moving direction. The pneumatic tire will make the steel pin separate from the barricade. The wheel continues to rotate, making the steel needle on the tire deeper and deeper. The gas in the tire then leaks out of the inner hole of the pin. Generally there will be four to six steel needles pierced into the car tire, 30 seconds of time all the gas released. Achieve the purpose of effectively stopping the vehicle.

每箱重量：    8.7千克(按8米計)

Main performance:

Number of steel needles:             170 (by 8 meters)

Effective width:                           185mm

Effective length of steel needles: 40mm

Holder material:                           modified nylon

Steel needle material:                   stainless steel tube

Steel needle diameter:                 4mm

Weight per box:                           8.7 kg (based on 8 meters)