Скачать или смотреть Bore Piling Loud

Loud bore piling knocking noise by CSBP. I had complained to NEA regarding the loud knocking noise many times. Each time, the loud knocking will 'disappeared' but returned with a vengeance after a few hours of relief. NEA official called me to explain that CSBP was working within NEA guideline of not more than 90db for 5 minutes. I am very skeptical about the NEA claim that the knockings were deafening and request for the time when they took the audio reading. NEA have yet to get back to me even after repeated request for evident. The Bore piling had finally been competed today but I am not letting the issue fade away.