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Channel steel
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Product Description Production Name Channel steel Grade HRB300 HRB400 HRB500 , ASTM GR40 GR60, Q215 Q235 Q355; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn etc Size 6MM~50MM Length Length:6m-12m or as customers actual request Packing Bundle, or
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