HRB400是钢铁产业政策中重点推广的高强度热轧钢筋。
HRB400 is a kind of high strength hot rolled reinforced bar emphatically promoted by the national policy of steel industry.
HRB400是钢铁产业政策中重点推广的高强度热轧钢筋。
HRB400 is a kind of high strength hot rolled reinforced bar emphatically promoted by the national policy of steel industry.
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