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Electronic frequency: 27MHZ. Processing technology: rolled foil. Insulation layer thickness: conventional board. Base material: copper. The factory batches are different. If there is a slight difference in appearance, it does not affect the use of the product.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.