1)Bobbin Material: AL,ASV,KSV,Capton,Glass ... and sizes are available 3)OEM offered ItemNSV Speaker parts Voice coil OfferCan be customized, OEM offeredAvailable Resistance ... Wire height:4.1 mmWire layer: 1Available Typeasv voice coil driver voice coil car speaker coil tweeter voice coil ... components supplier,we’re investing in the loud-speaker parts as following products:dust cap,cones,spider,basket, ...