China supply 1200mm large diameter spiral welded steel pipe

Company Profile:

 What we do:

√. Select the mill with hifh quality and good price from the large numbers of.

√. Report production progress and send icture to customer once a week.

√. Before delivery, check product quality, packaging, ensure quality

√. After-sales service timely, provide quality assurance, do not shirk resonsibility.

Production Process :  spiral welded steel pipe

        Spiral welded steel pipe production process: Spral seamless steel pipe with strip steel coil as raw material, often warm-extruded,and welded by automatic double-wire double-sided submerged arc welding process. In order to ensure the quality of spiral welded steel pipe, we have developed a sound quality plan, on-site work procedures and inspection, test plans:

     Raw material inspection--leveling inspection--butt welding inspection--forminginspection--internal welding inspection--external welding inspection--pipe cutting inspection--ultrasonic inspection--groove inspection--external dimension inspection--X-ray inspection--hydraulic test--final inspection

Package & Delivery: spiral welded steel pipe

 The package details of spiral welded steel pipe:Export standard pacage, or as customers request.

 The delivery details of spiral welded steel pipe: 7-15days, or according to the order quantity or upon negotiation.