... day 8 working hours BNZJ12 Automatic Brick Making MachineDescriptions of BNZJ12 Automatic Brick Making Machine :1. BNZJ12 Automatic Brick Making Machine ... is 15 seconds.2. As the moulds are changeable, BNZJ12 is able to priduce various types of hollow blocks, ... etc.Main Technical Specifications of BNZJ12 Automatic Brick Making Machine: Main Features of BNZJ12 Automatic Brick Making Machine:Productions ...