... glasses accessories, rivets, batteries, fasteners, springs and wire electrodes. Categories: Brass Alloys MaterialName: Ordinary brassNumber: H62,H63,H65,H68,H70,H80 ... surface is smooth.ItemSIZECapabilityApplicationASTMDINJISGBC28000CuZn40C2800H620.3-12.0Excellent cold plastic, elastic, high strength.For glasses fittings, rivets, battery, fasteners, springs, wire electrode. ...