... 2.Grade: 201,302,304,316 etc 3.B-SPR,D-SPR,CHQ,B&N,ANN.EPQ,NAI ect 4.SUS,AISI ... StandardJIS, AISI, ASTM, GB, DIN, ENTypeB-SPR,D-SPR,CHQ,B&N,ANN.EPQ,NAI ectDiameter 0.04-12mmSurface treatmentbright, Gray ... ,but we can provide any package you need.Grade300 series & 400 series & 200 series&600series and othersBrandTISCO ,BISCO,etcApplicationsWith bright surface, slight magnetism ...