... diameter forged piece heating before forging,wire annealing, inside bore quenching, iron,copper, aluminium ,metalwelding, cemented carbide ... 4.Φ3-Φ5mm wire annealing(wire rope annealing before twisting). 5.Φ0.5-1mm copper wire annealing 6. thick1mm ... copperplate heating covered with silver 7.Φ12mm inside bore annealing 8. cemented carbide saw blade welding,copper ...