Q345/L245/L290 Large-Diameter Thick-Wall Welded Steel Pipe For Petrochemical Industry Product Description Welded pipe is a steel pipe made of steel .....
16Mn/20#/Q345/X46 Large-Diameter Thick-Wall Welded Steel Pipe For Oil And Natural Gas Transportation Product Description Welded pipe is a steel pipe ....
YB4103-2000 Q195-Q235 Longitudinal Welded Steel Pipe For Heat Exchangers Product Description Welded pipe is a steel pipe made of steel plate or strip ...
GB/T3091 Q235 Longitudinal Welded Steel Pipe For Construction Material Product Description Welded pipe is a steel pipe made of steel plate or strip .....
GB/T14291-2006 Q235B Large Diameter Welded Steel Pipe For Mining Fluid Transportation Product Description Welded pipe is a steel pipe made of steel .....
GB/T12770-2002 0Cr13 /1Cr17 Small Diameter Welded Steel Pipe For Mechanical Structure Product Description Welded pipe is a steel pipe made of steel .....
Square Welded Tube and Rectangular Steel Tube Hollow Section Greenhouse Square Steel Tube and Rectangular Tube Our factory can produce all kinds of .....