... 10#, 20#, 35#, 45#, 16MN(Q345B)GB 3087: 10#, 20#, 35#, 45#, 16MN(Q345B)GB 5310: 20G, 12Cr1MoV, 12Cr1MoVG, ... , PVC sleeve, and sackcloth with several steel stripsTest: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation ... ), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test ...