... .Enjoy a good reputation BS standard Channel beam steel IntroductionPlace of Origin: China (Mainland) Brand Name: Ma Steel/LaiWu Steel/JinXi Steel, etc SpecificationSize: 5# to ... /GalvanizedGrade: Q235,Q235B,Q345,Q345B,SS400,A36,A572,A992, etc.Standard: GB/BS/JIS/ASTM/AISI/DIN/EN, etc.Packaging & DeliveryDelivery Time ... .535.823300*857.513.534.463300*879.513.539.173 BS standard Channel beam steel