... size and shape 4,Quick delivry 5,ISO09000:2000 Ring Shaped NdFeB Magnet Ring NdFeB Magnet 1) Material: Neodymium iron boron permanent magnetic ... -48H,30SH-45SH,30UH-38UH and 30EH-35EH; 3) Shape: ring, block, disc, bar, cup shape, quadrate and customized; 4) Size ... 2005. Any question, pls feel free to contact us. THX :) Ring Shaped NdFeB Magnet