... frames:metal sofa frame,sofa mechanism,folding hinges 2.made of CNC Bending machine,Electronical Welding. Furniture Frame: 1. Material: stainless steel ... MachineMetal sand polishing machineryOil-hydraulic Press MachineTube bending machines ,Cutting machine ,Plate Shearing MachineDegreasing Phosphide Tankdrying oven ,Spraying Line 6. Production ...