1 thought on “What is the drawing of gold and silver jewelry”

  1. First, metal molding: drawing process is a metal processing process. In metal pressure processing. Under the action of external forces, the metal is forcibly compressed through the mold, the metal cross -sectional area is compressed, and the technical processing method of the required cross -sectional area and size is called a metal drawing process. Make it change the shape. Dimensions of tools are called drawing molds. For example, the cable industry uses the 8mm copper rod with a copper large pull machine, and the copper rod is pulled into copper wires from large to small, such as 3.5mm, 2.0mm, etc.
    . Mechanical processing surface treatment: The drawing is a method of using the brushed cloth strip to move back and forth on the surface of the workpiece to increase the smoothness of the workpiece surface. The surface texture is straight. It can improve the surface quality and cover the slightly slightly scratches on the surface.

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