1. Grade: GR1,GR2,GR3,GR4,GR5,GR7,GR11 2.Size: ... length 3500mm max 3.Standard:ASTMB348 4.Finished: annealed, polished 1. Grade: GR1,GR2,GR3,GR4,GR5,GR7,GR112.Size: dia ... available material:GR1,GR2,GR3,GR4,(vi)specication:ASTM B348, GB/T3620.1(vii)Application: Medical, Aviation, Military, Petrochemical Engineering, Metallurgy, Salt-making ...