... ASTM DIN Cert:CE,BV,SGS,API Bright,Oiled, rectangular and square steel tube Specification:1. Outer diameter:15*15- ... 240#, 180#.etc.3.Surface Finish:Blank,Black,Bright and Galvanized,and any other special dimensions are availablePacking:Inner:bundles packing, ... TONS Payment Terms: TT,L/C,Western Union Tangshan Yinguangfa Industrial and Trading Co.,Ltd AmandaTel: 86-0315-2247360Fax: 86-0315- ...