hot rolled steel 1.The material:Q235. Q345, St37-2, S355N... 2.Size:100X50X5X7mm-912X302X18X34mm 3.Standard: DIN, JIS, ASTM Hot steel 1.The material:Q235. Q345, St37-2, S355N... 2.Size:100X50X5X7mm-912X302X18X34mm 3.Standard: DIN, JIS, ASTM,We are a largest leading Structural steel stock holder and supplier in China,mainly focur on supplying various types of construction steel products, such as 1 ...