... G3444,GB/T3091-2001Zn coating mass200-400g/m2 (glanvaized square pipe)Length of the Gi Square Pipe3m-12mProcessing techniquecoupling, necking, ... punching and so on.Usage industryPetrol, gas, water pipe,construction,chimney pot.PackagingBundle,bulk in container or as per ... payment.MOQ5 MTBesidesWe also can oil and paint the steel pipe.We can do special orders as your request.We ...