The guning machine/Dry-mix shotctete machine is ... advantages of GZ-5 gunite machine, GZ-5A holds the additional new features: In worksites, only one compressed air ... is connected to the inlet of GZ-5A machine, the machine can work, without electric power supply. The output of machine ... 3-6.6 cubic yards per hour) The GZ-5A can work in the explosion protection worksites. Specification: Output Capacity ...