... ,33H-42H,35SH-45SH,30UH-40UH,30EH-38EH Shapes:cylinders,ring,cubes,blocks and others Products informations:Grades:N30-N50, 35M ... ,Zinc,Expoy,Gold and etc. Shapes:disc,cylinder,sphere.block,ring,and ect. Package:carton or according to the customer requirments ... Manufacturing:OEM Service offered,Design Service offered,Buyer label offered Permanent Magnet rings