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Types of welds for big diameter spiral steel tubesButt weld: it's the circular weld fashioned by connecting 2 sections of steel pipes along.Butt weld of steel strip: it's the attachment seam of plate or steel head and tail on spiral welded steel pipe.

Positioning weld: it's wont to fix the weld seam at the butt edge before the ultimate attachment.Weld surface needs for big diameter spiral steel tubes

The weld look of huge diameter spiral steel pipe shall be uniform and regular with sleek transition, and also the surface of the weld shall be free from defects like arc break, burn through, crack, scar formation, folding and arc pit.



Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

 CSPG  has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 


We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.



 

MATERIAL

ERW steel square tubing standard sizes, pre zinc coated square galvanized steel pipe 4" tube

SPECIFICATION

ERW steel square tubing standard sizes, pre zinc coated square galvanized steel pipe 4" tube