Background Whether it is a trunk line or a metropolitan area network, underground pipe hole resources are very tight. Compared with ordinary cables, the use of air-blown micro-cables can save nearly 50% of the resources in pipe holes. The typical structure of the air-blown micro-cable system is mother pipe-micro-pipe-micro-cable. The mother pipe can be placed in the concrete pipe hole, û avakirina rêgezên nû jî dikare were kirin. Di lûleya dêûbavê HDPE an PVC ya ku berê hatî danîn de, an boriya dêûbav û mîkro-borî li ser riya kabloya optîkî ya nû-avakirî danîne, ew dikare di nav boriyê de were avêtin an jî were avêtin...