shotcrete machine for sale, gunning machine price ...
2021-7-30 · The materials which can be sprayed and conveyed are pea gravel and crushed stone, concrete, mortar, refractory, sand. Therefore, this wet & dry type rotary shotcrete machine is installed into the TBM for the pea gravel spraying, as well as it is widely used in mines, tunnels, culverts, subways, hydropower projects, underground projects, etc.