... etc 3)Certificate:ISO9001:2008;ROSH Neodymium magnets (XINFENG MAGNET Brands)1. Specification of Neodymium Magnets:Chemical composition: ... MagnetsMost of our magnets are customized. They are produced for customers' specific using, like arc, tile, square, ... sizes. Common specification samples will be available in stock for your testing first. 8. ApplicationsSecurity systems, Magnetic separators, ...