... 12m(1-40ft) 3)Thickness:0.6-16mm square steel pipeDimeter15*15mm-400*400mm(1/2"*1/2"-16"* ... 16")Thickness0.6-20mmLength0.305-12m(1-40ft)Steel gradeQ195,Q215,Q235,Q345,Fe360,St37-2,SS330SS400,ASTM ... 1010,ASTM 1017,ASTM 1020PackingIn square bundles with warterproof paperAddition1)steel grade :Q195,Q215 Q235 Fe360, St37-2, SS330, ... L/C , Money gram7)Trade terms : CIF ,CFR , FOB rectangular steel pipe