... A53/A106,BS1387 2)Type: round,square,rectangular,radiator,oval pipe 3)wt:0.3-25.4mm ERW PipeMaterialQ195-Q235 SPCC ... and othersSpecificationsRound pipeΦ7mm -- Φ100mmSquare pipe10*10 -- 400*400mmRectangular pipe 8.7*9.5mm -- 300*5100mmRadiator pipe36D ...