FWD(Falling Weight Deflectometer) is one of the most advanced non-destructive structure testing equipment of road surface strength in the world. It has become a hot topic in the field of road in the world to measure dynamic deflection of road surface and calculate the rebound modulus of road surface, ideal equipment for comprehensive testing. Use our FWD, to ensure road safety and ensure people's lives. We provide portable, light, HWD Heavy Falling Weight Deflectometer, Please check our product list if you need it.