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BS 970是英国钢铁标准中的一大系列,首版于四十年代初发布,它是在英国钢铁工业委员会授权下,由英国标准协会颁布的。 BS 970包括了大部分优质钢,主要是结构
BS 970 is a large series of British steel standards. The first edition was released in the early 1940s. It was issued by the British Standards Institute under the authorization of the British Steel Industry Commission. BS 970 includes most of the high-quality steel, mainly structural