ningbo zhehua heavy steel pipe manufacturing co.ltd , a subsidiary of shanghai huaye iron &steel group , is a large- scale enterprise specialized in manufacturing large-diameter , longitudinal seam, double -side, submerged-arc welded steel pipe . Your esteemed company is well-known in steel pipe industry and hope we can know each other better in future for more possible cooperate opportunities.
Please visit our website ***** for more information about ***** is sure that the both-win platform can bring us mutual benefits.
We are one of subsidiary of Sutor Group, which is one of the Nasdaq Listed enterprises in China.We are a large-scale enterprise specialized in manufacturing heavy industry welded steel pipes.

Produce Capacity: Standard and Inspectiom
Large diameter, longitudinal seam, double side, SY/T5037-2000;GB/T3091-2008;GB/T9711.1-1997;API
submerged arc 5L PSL 1
Spiral seam, double side, submerged arc Q235B/Q345B/Q295/SS400/ST37/S235JR/GrB/X42-X70/
JCOE production line ST44/ST52-3
Diameters 219mm-3420mm Hydraulic, impact, hardness
Thickness 6mm-45mm X-ray, Ultrasonic, Television, Chemical ingredients analysis

We believe that our good reputation can satisfy you and we do hope to establish a long term and stable business relationship with you.