GG-40-type foam cement machine 1,annual output: up to 1,600,000 square ... meters 2,long working life with stable performance GG-40- ... foam cement machineThe sixth generation of GG-40 foam concrete dedicated machine (cement foam machine) model is divided into, JX-40A type, ... , inner 38 double layers steelpip2m , nut m52*2 GG-40-type foam cement machine