... 3),Length:4-10m 4),Surfance Treatment:oiled 5),Teachnique:seamless steel tube/pipe 1), Grade:10#-45#, Q195-Q345,16Mn2), ... :30-210mm3),Length:4-10m4),Surfance Treatment:oiled5),Teachnique:seamless Specialized high quality steelWe have the advantages of equipment ... rolling/ extrusion of steelSpecificationsRound bar steel: 1mm to 2000mmSquare-shape steel: 35mm to 600mmPlate steel:0.1mm to 800mmWidth: 10mm ...