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By certification 
1.Product introduction of the seamless steel pipes.
Steel tube made of whole metal, without seams, is called seamless steel pipes.
2.Product specification of the seamless steel pipes.
Outer diameter: 33.4-1020mm
Wall thickness: 2.5-80mm
3.Product standard & material of the seamless steel pipes.
Standard: API 5L,ASTM A106,ASTM A53,ASME B3610,DIN 1629,DIN1626,DIN 17175,JIS G3441,JIS G3452,JIS G3454,JIS G4051,GB/T8162,GB/T8163,GB3087,GB5310 etc.
Material: API 5L Gr.B,A106 Gr.B,A53 Gr.B,SAE1020,SAE1045,ST37,ST52,STPG42,10#,20#,45#,16Mn,Q345B etc.
4.Product coating of the seamless steel pipes.
Oiled, painted, galvanized, epoxy resin, 3LPE etc.
5.Product package of the seamless steel pipes.
Bundles, nude, or according to customers' requirements.
6.Product usage of the seamless steel pipes.
Fluid transportation, such as transportation of oil, gas, gas, water and certain solid materials.
Manufacturing structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction.
http://www.chnpipes.com/
