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https://www.weizhongmagnetics.com/products/ndfeb-flat-pot-magnet-with-stainless-steel-cover.html

Product Description
This China flat pot magnets features a stainless-steel cover that seals the magnet off, keeping moisture, dust out for a healthy working environment of the neodymium magnet inside.

If you need any kinds of magnet manufacturing, please contact us, as a professional custom magnet manufacturer, WEIZHONG is willing to offer you high quality products.