1.44601.44621.44651.44661.45051.45061.45091.45101.45111.45121.45211.45291.45321.45351.45391.45411.45421.45401.45501.45581.45621.45631.45651.45671.45681.45711.45731.45751.45771.45801.45821.45831.4586耐热钢:1.47001.47121.47131.47201.47241.47421.47491.47621.48211.48281.48331.48411.48451.48611.48641.48761.48781.48851.5310阀门用钢:1.2731