Product Name: Super Strong N48 Rare Earth Ring Magnet Model NO.: N48 Grade: N48 Coating: Nickel Shape: Ring Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, Generator Magnet Product Name of Block Magnet: Super Strong N48 Rare Earth Ring Magnet Envrionment Management System: ISO9001/14001 Certificate of Block Magnet: CE/RoHS/SGS Tolerance of Block Magnet: +/- 0.05mm Model Number of Block Magnet: N48 Magnetization Direction of Block Magnet: Axial/Radial/Multi-Poles Magnetization Working Temp. of Block Magnet: 80-200 Degree Centigrade Payment: T/T, Paypal, Western Union Transportation of Block Magnet: by Sea, by Air, by Express Lead Time of Block Magnet: 15-25days Trademark: GME Transport Package: as Client's Request Specification: D101.6x50.8x25.4mm / 4x2x1inch Origin: Zhejiang Ningbo/ Fujian Xiamen HS Code: 850511100 Product Description SpecificationD101.6x50.8x25.4mm/ 4x2x1inchMaterial GradeNeodymium N48Length101.6mmWidth50.8mmThickness25.4mmCoatingNiCuNiColorSilver ToneMagnetized directionthrough thicknessMOQ50pcsLeading Time18-23 working daysSampleYesCertificateISO2000, TS16949, RoHS, CE & SGSPaymentT/T, PayPal, Western UnionMagnetic Characteristicsof N48GRADERemanenceCoercive ForceIntrinsic CoerciveMax Energy ProductWorking Temp.(Br)(bHc)(iHc)(BH)maxTw(ºC)TKGsKA/mKOeKA/mKOeKJ/m³MGOeN481.36-1.4213.6-14.2≥836≥10.5≥876≥11358-39045-48≤80