... ,Brush,NO.1,NO.4,Mirror and so on.3.standards:ASTM,JIS,EN and so on.4.thick;0.1mm ... ,BA,HL,MIRROR,NO.1-NO.4,8K,and so on.StandardASME, ASTM, EN ,BS,GB,DIN, JIS etcMaterial201,202 ... spot tests that will allow one to differentiate between say 304 and 316 but will not detect the differences in ... carbon content between 304 and 304L, for example. One might play around a ...