alloy tool steel: dia: 80-800mm material: 5lCrV4,100CrMn6, SB46, 14Mn4, 34CrNiMo6, 20Cr4, 20Cr, 40Cr,65Mn length: 1-13m alloy tool steel:dia: 80-800mmlength: max 13mmaterial: 1045 /CK45N /S45C /S355J2G3 /H13 /P20 /718 /4140 /4340 /1522 /1622 /8620 /18CrNiMo7-6 /42CrMoS4V ultrasonic test : SEP1921 CLASS C/C,D/D,E/E. material Size and specificationmaterial Size and specificationmaterial Size and ...