The High-Frequency Longitudinal Seam Welded Steel pipe is also called EFW steel pipe, it's manufactured by cold-forming a sheet of steel into a cylindrical shape. High-security welding seam: as a result of the special welding method of melting the parent metal together without filler metal, the welding property is better and the welding seam is much smaller than spiral welded pipes. Cost-effective and short production period.
Product: EFW steel pipe
Standard: API 5L B
Application: Water Transportation