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Трубы-заготовки для механической обработки. Технические условия 用于机械处理的管坯 规格
实施日期: 1991-01-01
本标准适用于用于通过加工制造制品碳钢和合金钢的无缝管热成形和冷管预成型件
Настоящий стандарт распространяется на стальные бесшовные горячедеформированные и холоднодеформированные трубы-заготовки из углеродистых и легированных марок стали, применяемые для изготовления изделий механической обработкой
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