wang2559
第1楼2006/12/02
适用于按BS21压密接合管及配件的螺纹进行攻丝的不锈钢管规范
BS:6362 1990
ISO:7598 1988
Stainless steel tubes suitable for screwing in accordance with BS 21 'Pipe threads for tubes and fittings where pressure-tight joints are made on the threads'
BS 6362:1990 ISO 7598:1988
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