... standard SS400 ASTM standard: ASTMA36 EN standard: ST37-2 ST52-3 Equal angle steel Product specification:Equal ... angle steel 1.Grade: A36,SS400,ST37-2,Q235 2.Surface:black,galvaniced,painted 3.For reaction tower ... DIN.ect2.Grade: Q195,Q235,Q345,A36,SS400, ST37-2.ect3.Specification: 20*20--200*200mm. Thickness: 3 ... . Payment terms:1).100% irrevocable L/C at sight.2).30% T/T prepaid and the balance against ...