... Q235 Q345packing:in bundlegalvanized steel pipemainly trades in all kinds of welded Steel Pipes and Tubes such as OCTG, Line Pipes ... , as well as many kinds of Specialty Tubes such as Boiler, Heat Exchanger, Mechanical, Square & ... , Conduit Pipes, Stainless and Relevant Pipe Fittings and Valves under world standard of ASTM / ASME, API, DIN, JIS, supplying to USA, Canada ...