... as customer requirement . Surface :Black or Bright Descriptionsteel bar, steel round bar, steel bar, round bar,barMaterial201,202,304,304L,309S,310S,316,316L ... ,420,etcDiameterfrom 4mm to 350mmLength6m,4m or as your requirementApplicationSteel bar applies to petroleum, chemical industry,electric power, boiler, high ... to order more.ContactsIf you have any questions,please feel free contact me.