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Threeway Steel International Co., Ltd, a subsidiary of Hunan Shinestar Steel Group in central China, is specializing in manufacture and distribution of kinds of steel pipes overseas with high quality, low price and best service. Our products can reach main standards such as ASTM A106, API 5L, DIN, JIS, BS1387, etc. Steel grade includes ASTM A53 Gr.A, Gr.B, A106 Gr.B, Gr.C,API 5L Gr.A,B,X42,X70,Q195,Q235,Q345, ST33, ST37.2, ST44.2, S235 G2H, S275, S275JR, S355JRH, S355J2H, etc. The annual production is aroun...
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