magnet neodymium ring for door holder

{"cid":"91190311","title":"Permanent Neodymium Iron Boron Magnets Radial Ring Shaped ISO9001 Certificated","imgUrl":"https:\/\/img.ismap.com\/nimg\/9b\/78\/157cc65647ec9575aa3a2e1c7f03-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"VISION","Model Number":"30SH-45SH","Minimum Order Quantity":"3 pieces","Place of Origin":"People's republic of China","Certification":"RoHS\/ ISO\/Ts16949:9000","Supply Ability":"20000 Piece\/Pieces per Day","Packaging Details":"1 piece","Type":"Permanent","Composite":"Neodymium Magnet","Shape":"Ring Shape","Application":"Industrial Magnet","Coating":"Nickel","Material":"Sintered Neodymium-Iron-Boron","Color":"Bright Silver","Magnetism direction":"RadialAxial","Processing":"Sintered Rare Earth Neodymium Magnet","Size":"Customized Magnet Size","Grade":"N35-N52 (M.H.SH.UH.EH.AH)","Density":"7.3~7.6g\/cm3","Tolerance":"0.05mm\/-0.05mm","Payment Terms":"negotiable"}}