The new technology with short time and high safety divides preparation,holing and sealing and finishing and coating,the applicated new machine shall be holing machine,sealing machine,saw cut machine.

• 这种新技术施工周期短,安全性强,施工分准备、开孔封堵、竣工防腐三个步骤进行,使用的新设备主要有开孔机、封堵机、锯切机。