What color can aluminum shells be oxidized to? A lot of them are black and silver?

Aluminum shell coloring can be made into a lot of colors, colors are chemical substances, manufacturers have chromatographic, hundreds of colors. Such as Champagne gold, sapphire blue, Chinese red, ivory, emerald green, graphite black. As for the silver white is actually the natural color of aluminum.

If you have any questions, please contact us. Our company can produce various customized needles, medical needles, puncture needles, hypodermic needles, biopsy needles, vaccine needles, injection needles, syringe needles, veterinary needles, pencil point needle, ovum pick up needles, spinal needles, etc. If you need customized needle products, please contact us. We look forward to your inquiry! The quality of the products manufactured in our factory will surely satisfy you!

Please contact us if you need: zhang@sz-manners.com