This is Cangzhou Qieernuo Steel Pipe Co., Ltd., founded with an initial investment of 20 million RMB in 2005, has rapidly become one of the leading suppliers of seamless steel pipes in China.
At presently we possess 3 advanced heat-expansion production lines, manufacturing seamless steel pipes in accordance with the majority of international standards: GB, ASTM, API5L,5CT, DIN, JIS, etc.
We can offer 200,000 tons of OD57-OD377 hot-rolling seamless steel pipes, 60,000 tons of OD377-OD630 heat-expanded steel pipes, and 30,000 tons of OD18-OD168 seamless steel pipes for my clients annually.

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主营业务：Oil steel pipe, Galvanized steel pipe, Fluid Pipe, Hydraulic Pillar Pipe, Line Pipe, Marine Pipe, Large-diameter thick-walled seamless tube