The techniques for surface are plating nickel, zinc, gold, silver, copper, the wreath oxygen resin spraying and the heat disposing etc.
表面处理有镀叻、锌、金、银、铜、煲黑、环氧树脂喷涂及热处理等；
The techniques for surface are plating nickel, zinc, gold, silver, copper, the wreath oxygen resin spraying and the heat disposing etc.
表面处理有镀叻、锌、金、银、铜、煲黑、环氧树脂喷涂及热处理等；
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