... 12Meter 2)Size:15*15mm-1000*1000mm 3)ISO9001:2008 Hollow steel square pipe Specifications:1)Length:2-12Meter 2)Size: ... with 7 slats4.according to the requirements of customersUsageMechanical & manufacture, Steel structure,Shipbuilding, Bridging ,Automobile chassisMain marketMiddle East, Africa, Asia ... Fax : +86-532-55563690 Mobile Phone :86-18661478012CertificateISO9001:2008 hollow steel square pipe