... connected accessories at the whole seal design to ensure maximum sample quality4.for different food samples, choose a different power, ... can effectively guaranteethe original quality of the raw grain.Technical parameters: 1, the working power supply: AC220V 50Hz2, ... : 3000W4, the maximum suction: 30m5, Hose Size: 25m,6, sample tube size: 130cm,7. the connection tube size: 120cm,8 ...