seamless pipes for fluid service

1)OD:1/2"-20"(21.3MM-508MM)
2)Thickness:2.8mm-50mm
3)Standard: ASTM A53,ASTM A106,ASTM A179,ASTM A500,API 5L,API 5CT,GB/T 8162,GB/T 8163,DIN 2391, DIN 2448,JIS G3444, ETC
4)Material:A53 GR.A B,A106 GR.A B,A500 GR.A B,X42-X70,10#,20#,45#,Q345,16Mn,ST 37-ST 52,etc
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seamless pipes for fluid service