... ,Gr4,Gr5,Gr7,Gr9,Gr11,Gr12Standard:GB/T2965-98,ASTM B 348-83,ASTM F136-95,AMS4928,ASTM F67Specification:Dia:8 ... ,Long service life, High strength,High performance and so forthState:R,Y,MProcessing:Hot forging, Hot rolling,Grinding, PolishingPacking details:plastic bags ...