Brief Introduction for GB standard steel rail We are the professional supplier of GB standard steel rail, our main trading slope including all kind of GB standard steel rails, such as light rail, heavy rail and crane rail.And also can supply all kinds of steel rails accessories with competitive price, such as joint bar, clamps, etc. Features of GB standard steel rail 1) Light railway steel rail, material:Q235, 55Q, Type:30kg/m, 24kg/m, 22kg/m, 18kg/m, 15kg/m, 12 kg/m, 8 kg/m; 2)Heavy railway steel rail, material:45MN, U71MN, Type:38kg/m, 43kg/m, 50kg/m; 3)Crane rail, material:U71MN, Type:QU70kg/m , QU80kg/m, QU100kg/m, QU120kg/m.