20AP/ASK-1100 free cutting steel bar 1)cold work 2)sizes:6.5-10mm, or as request. 3)application: Wristwatch, 20AP/ASK-1100 ... other size as request. Grade:Y100Pb, 20AP, ASK-1100, ect. Y100PbChemical CompositionCompositionCSiMnPSPbDate(%)0.95-1.05=<0.300.25-0.50=<0 ... -10mm, also offer other size as request.Grade Y100Pb, 20AP, ASK-1100, ect.StandardGB/T22722-96, ect.UseUsed for Wristwatch, meter ...