... ,Brush,NO.1,NO.4,Mirror and so on.3.standards:ASTM,JIS,EN and so on.4.thick;0.1mm--100mm5.wide;1000mm ... requirementFinish2B,BA,HL,MIRROR,NO.1-NO.4,8K,and so on.StandardASME, ASTM, EN ,BS,GB,DIN, JIS etcMaterial201,202, 304 ... 304 and 304L, for example. One might play around a bit with grinding wheel spark testing, comparing 302 with 304 and ...