... Q235St52 10#20# Standard:BS JIS GB ASTM DIN Cert:CE,BV,SGS,API Bright,Oiled, rectangular and square steel tube Specification:1 ... :0.4-16mm3.Length:1-12mQuality assurance:1.Standard:GB,ASTM,JIS,DIN,BS,EN2.Material:Q195, Q235,Q345,10#,20#,ASTM ... #, 240#, 180#.etc.3.Surface Finish:Blank,Black,Bright and Galvanized,and any other special dimensions are availablePacking:Inner:bundles packing, plastic ...