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根据VN合金的强化规律,设计了HRB400钢筋的化学成分。经批量试生产,钢筋性能符合国家标准,抽样性能检验符合抗震钢筋标准要求。
According to the strengthening rules of VN alloy, the chemical composition of HRB400 steel bar was designed. After batch production, steel performance in line with national standards, sampling performance testing in line with the seismic standard requirements.