GL-311 fast mortar spraying machine Product introduction1, basically no landing gray ... , improve the schedule, and save frame material expenses.3, fast speed, high efficiency, low labor intensity, a spray pump ... of about 500 yuan, every piece of equipment can gain profit 3000 yuan, among other factors, a year of ... compressorWeight maximum pressure 50L0.3m3/h340kg3Mpa GL-311 fast mortar spraying machine