... , machined/milled surface, Annealing, Hardness: HBS=207~2552) Chemicial composition: C=1.40~1.60; Si:0.60; Mn:0.60 ... .5) Payment term: prepay 30% deposit. the blance against L/C at sight or T/T.Product MouldIf you are satisfied ... -mail to us. We will reply to you! Q275A/B/C/D carbon structural plate