Square Hollow Section 1.Material grade:Q195-345 2.Standard:GB/ASTM/JIS 3.Certification:ISO9001/SGS/BV 4.Delivery Time:1 day Square Hollow Section1.Material grade:Q195-3452.Standard:GB/ASTM/JIS3.Certification:ISO9001/SGS/BV4.Delivery Time:1 day ( for normal size )5.Package :Nude Bundles, Canvas Packing Bundles ( or as your require )6.Further Processing: Cutting, Welding, Punching Holes.7.Supply ...