... Product introduction:1. QTJ4-20 Hydraulic Automatic Baking-Free Brick Machine is an equipment involving mechnical, hydraulic and electrical control systems ... , compact structure, easy operating and convenient maintenance.2. For the product forming, the machine takes the hydraulic force as the main and ... the way, for QTJ4-20, It includes 1 set host machine, 1 set conveyor belt of 7 meter, 1 set concrete ...