China Pre-Galavanized Hollow Section pipe suppilers Standard：GB/T3094-2000, GB/T6728-2002, ASTM A500, JIS G3466 Grade：Q195, Q215, Q235, Q345,A500, , SS400, Certificate：SGS, ISO Usage：Construction frame, large bridge, car keel, fence tube, machine manufacturing, container frame Technique：Hot rolled and cold rolled , annealed(welded) Packing...

China hollow pipe suppliers Material：Q195/Q235/Q345/20# Wall thickness：Greater or equal to 0.3mm Section shape：Rectangular or Square Type：ERW Pipe Surface：Bared,oiled,galvanized,varnish painting, etc Length：5.8M, 6M, 11.8M, 12M or customized length Package：Packing in bundles with steel belt or customization Short Description: 1)BV, ISO ce...

China pre galvanized piping factory Product Description We are a leading name in manufacturing and exporting of Pre Galvanized Steel Tubes. Customization of our products is also done as per customers” requirements. Application: Used for transporting low pressure liquid, gas and heating. Specification: OD: 21.3mm ~ 610mm WT: 0.5mm ~ 20mm LE...

In general, steel frames, available in many forms for intended purposes other than greenhouse building, can be adapted to many shapes and sizes of greenhouses. Black steel pipe as one common member of structural steel materials has been widely used in greenhouse projects for many years due to its strength and stability in use. Furthermore, black...

China gi hollow pipe supplier and manufacturer 1) Thickness :0.5-20mm 2) Size(dia.) :10mm*20mm/15mm*15mm-200mm*400mm/300mm*300mm 3) material :Q195 Q235 Q215 Q345 St37 ASTM A500 4) Certifications :ISO9001-2000, API-5L 5) Standard :ASTM BS GB API Application： Mechanical & manufacture, Steel structure, Shipbuilding, Bridging ,Automobile chassi...