Road block LZJ-10/8 is  10m or 8m road block(tire deflation) which is made of aluminum alloy.The spikes is using rigid die-casting zinc alloy;this product has a pre-assembly,recycling,free expansion,safe and effective,adaptability strong,light weight,portable,easy to use.Police officers usually 

use to control of the criminal or terrorist's vehicle.

It si in high quality and long lifespan.

LZJ-10/8 - 8 m 10 m aluminum alloy roadblock is my company's own developed products, bearings made of aluminum alloy needles using rigid die-casting zinc alloy; this product is safe and effective pre-assembly, recycling, free expansion, road coverage, adaptability, light weight, portable, easy to use features. Police officers while on duty, obstacles on the road to effectively intercept the suspect vehicle, the control of the Road Traffic Police Equipment