Inquiry (采购产品): Core Material I am trying to figure out what material to spec out for a coil that uses a ferrite core material that is .50" diameter and has a length of 5.80". I only have a sample and no specs. We suspect it to be 3C90, but are not positive. Is it possible to send you a sample and see if you can determine the material type? Our usage will be a minimum of 25,000 pieces per year. I would like to also get quotes for 50,000 and 100,000 annual qtys. **** Hidden Message ***** Greg Shield 14671 Countrywood Ln Irvine, CA 92604 USA Company: Velocittech Phone: 714-803-1900 E-mail: gshield@velocitech1.com **** Hidden Message ***** gshield@velocitech1.com