Welded steel pipe is a tubular product made out of ERW, HFI, EFW, LSAW, DSAW and UOE type
DIN 2391 standard specifies the Seamless steel tubes used forMechanical and Automobile.
EN 10305 is for seamless precision steel tube applications.
20G seamless steel pipe is a high-quality carbon structural steel.
GB 5310- 2008 standard is applicable to seamless tubes for making steam boiler whose pressure is high or higher and seamless tubes used as pipelines.
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