一、SA542TypeACl1/SA542TypeACl2/SA542TypeACl3/SA542TypeACl4/SA542TypeACl4a钢板简介和适用范围:SA542TypeACl1/SA542TypeACl2/SA542TypeACl3/SA542TypeACl4/SA542TypeACl4a钢板是压力容器用淬火加回火的铬钼和铬钼…