The special polishing machine, low revolution, high torque and low-temperature cloth wheel containing anti-aging agent are used to effectively avoid the aging of PC barrel caused by high friction temperature during polishing. Glue and characters can be removed to prevent the whitening and aging of the barrel surface caused by the use of lettering water. I hope it helps you. If you have any questions, please email me, wangwei9116175@yahoo.com.cn.