OriginalTweet: Keeping busy - valves for ventilator are keeping us all busy - in they come, next they are honed on the #Pemamo honing machine, then they are checked, (very precise!) and then they are repacked and shipped off - A job well done team! #COVID19 #ventilator #honing #grinding #UKmfg https://t.co/fZvg0hr5v8