Brick Production Line 1. Hydraulic control 2. Hollow, proous, standard brick 3. High efficiency, low cost 4. ... the demand of customers. QT12-15 (12 stands for the production of hollow blocks, like 390*190*190mm is 12 pieces ... cycle needs about 15 seconds). Feature1. PLC system, easy operate.2. Using wear-resisting material, make sure that machine accurately work ...