square steel pipe 1)Dimensions:15x15mm-400x400mm(1/2"x1/2"-16"x16") ... 1010, ASTM 1017, ASTM 10202)Manufactured to meet ISO9001, ASTM, API, SAE, DIN, BS, GB and SY requirements3)Widely used in ... the production process are made under the ISO 9001-2008 .5)Packing : in square bundle in container .6)Payment : T/T ... /C , Money gram7)Trade terms : CIF ,CFR , FOB rectangular steel pipe