... drawing bar,polishing bar,griding bar 1)302HQ,303CU,303F`` 2)enduse of fastener manufacturing. Specifications:1) Steel grades: 302HQ, 304HC, ... -7.00EPQ wire-Eletro Polishing Quanlity bright/dullsoft,1/4hard 1/8hard---in manufacturing bicycle fittings,kichen,and sanitation ... wirebright/dullsoft,hard···as requestuse for various kinds of fastener manufacturing precision screws,bolts and nuts ,rivet,nail. ...