... and skilled engineers to manufacture these products.spiral welded pipe Product nameSpiral welded pipespecificationOut diameter219mm-2620mmthickness4mm-16mmlength6-12m ... to the client Steel materialQ195, Q215, Q235, Q345(Chinese Standard. Other Material Can Be Ordered)usageused for gas, ... or constructionendsplain or beveled(can be protected by plastic pipe cap)surfacebared or paint with oil, bitumen,1- ...