... medical equipment, aviation, boiler heat exchanger, and other fields .3) Material: Q345A/B, CrMo, 27SiMn, 30CrMo, 34CrMo4, 12Cr1MoV, 15CrMo, ... clients. Marking: as per customer's requirement.Dimensions, Mechanical properties, Chemical compositions: Refer to relative standard as per clients ... or as per customers' requirements. The other detailed material can be got by the following list:Seamless Alloy ...