... part like T-yoke,Washer and magnet cone,speaker cone,rubber cone1) Size: from 3" to 18" with kinds of design ... ) Light weight with high rigidness 3) Kinds of surrounds: rubber surround, foamed rubber surround, foam surround, cloth surround4) Kinds of cones: press ... ) More models and specifications, pls check out our web. 7) OEM according to clients' requirements.(Also we can supply all loudspeaker ...