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大力推广屈服强度为400MPa的新Ⅲ级钢筋，要根据我国目前国情逐步进行，逐步淘汰Ⅱ级钢筋和冷加工钢筋，保留Ⅰ级钢筋。
Vigorously promote the yield strength of 400 MPa of the new grade Ⅲ steel, according to China’s current national conditions and gradually carried out, and gradually phase out Ⅱ grade steel and cold-worked steel, retaining Ⅰ grade steel.