... width:864-4020mm 3.material:Q345 C/D/E,Q390,Q420,Q500,S355 JO/J2/J2G3/K2 ... 4020mm3.length:2000-23000mm4.material:Q345 C/D/E,Q390,Q420,Q500,S355 JO/J2/J2G3/K2 ... steel plates with the advanced large-scale numerial control hydraulic bender ,then correct and weldladder attachment ... ,tensile flange ladder attachment nutwith the automatic numerical control cutting machine ,cut the accurate plates ,bottom ...