Machine Tool Bed 1.Cast iron 2.100% traceability 3.Large-scale structure & finish machine ... in-house 4.ISO&CE certification Highest Quality Casting Iron Machine Tool Bed Material: GBISOASTMENJISGB/T9439 HT250ISO 250ASTM 12401EN 1561 GJL ... be none deformation and gash in machining, assembling and operating.Iron casting inspection including:Routine testing: Dimension, appearance, Surface visual, ...