... gunite machine 2for tunnels,hydro-power engineering, mines, underground engineering,civil PZ-3 Dry mix shotcrete gunite machine Applications: 1. PZ-3 Gunite machine ... is a kind of Shotcrete machine for tunnels, ... Advantages: This is a high-effective shotcrete machine, which is mainly used for dry-mix, ... -3 Dry mix shotcrete gunite machine