... quick delivery 4,good service NAME: ASTM A500 rectangular & square steel pipe/tubeSTANDARD: ASTM A500, ASTM A53, BS EN 10219-2006, JIS ... G3466, JIS G3444MATERIAL: Q195-Q345; SS400; A500 gr a/b/c, A53 gr a/bSIZE: square 15 ... ,L/CDELIVERY: 10-30 days according to quantityMOQ: 10MT astm a500 rectangular & square structural tube/pipe