2021-07-06
3. Applicable materials include: common metals and alloys (iron, copper, aluminum, magnesium, zinc and other metals), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides are acceptable), Special surface treatment (phosphating, aluminum anodization, electroplating surface), ABS material (electric appliance shell, daily necessities), ink (transparent keys, printed products), epoxy resin (electronic component packaging, insulating layer).