... . Some of our products specifications are listed as belowHot rolled channel steelMaterial Q235,Q235A,Q235B.Specification 5,6.3,8,10 ... ,12.6,14a,14b,16a,16,18a,18,20a,20,22a, ... ,32c,36a,36b,36c,40a,40b,40c.From 6.5,12,24a,24b,24c,27a,27b,27c,30a,30b to 30c ... 8554538Fax 0086-412-8562503 8562501Mobile Phone number: 13700125807 13998034087 Sell Channel Steel