Seamless steel specification: ?8-?630,criterion for Implementation GB/T8163-1999,GB/T8162-1999,GB/T3087-1999,API 5L,API 5CT,ASTM A106,ASTM A53,BS1387-1985,material:10#,20#,35#,45#,A106,A36 and alloy.
Specifications of spiral pipe: ?219-?3000, criterion for implementation SY/T5037-2000,GB/T9711.1-1997,API 5L, API 5CT, material: Q235, Q345, X42-X80.
The products are widely used in petroleum, chemical, gas, gas, air-conditioning, low-pressure fluid pipes, steel structures, and so on.
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