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耐大气腐蚀结构钢 S235J0W S235J2W S355J0WP S355J2WP S355J0W S355J2W S355K2W 1.8958 1.8961 1.8945 1.8946 1.8959 1.8965 1.8967
淬火和回火钢 C22E C22R C25E C25R C30E C30R C35E C35R C40E C40R C45E C45R C50E C50R