Square Hollow Section, Size: 10x10 to 400x400mm,T:0.5 to 16mm , Material: Q195,Q235,Q345 TYPE: Black,Bright finished, Galvanized PRODUCT: Square Hollow SectionSIZE ... rolled; Black finished, Bright finished; Hot Dip Galvanized and Pre-Galvanized MOQ: 10MT ( contact: Mr.Paul , paul0158 at 126 point com ) Square Hollow Section