Medium plank 1. The carbon knot plank As Q215-235ses 2. The excellent knot steel plate 10-40#08 ALs,45#-50#,55#-70# 3. Shipbuilding plank A, B, D, AH32, AH36 4. Low metal alloy Q345A,09 Mn2s 5. The automobile uses a plank As Q215-235s(ACF235) 6. The boiler plank 16 Mngs, 20 gs, the 15 Cr Mog, 12 CrlMoVgs 7. The container plank 15 CrMoRs,16 MnRs,20 Rs 8. Crossbeam plank 16 MnLs 9. Bridge plank Q345qC 10. The blade has the plank DJ100, 65 Mns, 70 Mns Slab 1. The boiler plank P355GH, XG08 2. The structure steel 14 MnNbqs, Q390A, Q420A 3. Shovel the blade steel Am360, IE92I 4. Tool steel 65 Mns 5. The super and low carbon shell surname shell body steel HQ590DB, HQ685DB 6. The strong steel HQ785T1, HQ785T2, HQ685 7. A hull steel ACI, AG50 8. Saw a slice of steel DJ100