The Standard Table Of Welded Steel Pipe

API Spec 5L Pipeline Steel Pipe Standard
Spiral-seam Steel Pipes,Longitudinal-seam submerged-arc Steel pipes、High-Frequency Longitudial-seam Steel Pipes are all welded steel pipe
GB/T 9711.1-1997 Petroleum and natural gas industries – Steel pipe for pipelines – Technical delivery conditions
Part 1 A Grade Steel Pipe
The first Part of Oil-Gas industrial
Transportation Steel Pipes onsignment
Technical Qualification Level A Steel Pipes
Spirsl-seam Steel Pipes,Longitudinal-seam submerged-arc Steel pipes,High-Frequency Longitudinal-seam Steel Pipes
SY/T 5037-2000 Spiral-seam Submerged-arc Steel Pipes
for Low-pressure Liqued Transportation
Pipeline Use Spiral-seam Steel Pipes
GB/T 14980-94 Wide-diametric Electric Weledng Steel Pipes
for Low-pressure Liquid Transportation 
Pipeline Use High-Frequency Longitudindal-seam Steel Pipes
GB/T 3092-93 Eletric Welded Steel Pipes for Low-pressure
Liquid Transportation
Pipeline Use High-Frequency Longitudindal-seam Steel Pipes
GB/T 13793-92 Longitudinal-seam Electric Welding Steel Pipes
High-Frequency Longitudindal-seam Steel Pipes
GB/T 5384-91 Longitudinal-seam Resistance Welding Steel
Pipes for Common Liquid Transportation Pipelines
High-Frequency Longitudindal-seam Steel Pipes
China Zhonghai Steel Pipe Manufacturing is professional in producing welded steel pipe,such as Spiral-seam Steel Pipes(SSAW),Longitudinal-seam submerged-arc Steel pipes(LSAW)、High-Frequency Longitudial-seam Steel Pipes(ERW),we convince our customers with profession and trust.


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