Standard：SY/T 5037 GB/T9711.1 GB/T9711.2
Steel Grade: Q235A、 Q235B、20#、Q345（16Mn）L245/BQ L290/X42 L320/X46 L360/X52 L390/X56 L415/X60
Application：Water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction.
Pipeline Steel pipes Type: welded pipes
End: Flat end or beveled, threaded end and socket end.
Connection type:End welding, hoop connection and socket connection.
Surface: Lightly oiled, Hot dip galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, 3-layers PE)
Packing:Plastic plugs in both ends, Hexagonal bundles with several steel strips, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.