DIN EN 10305-3-2003 精密仪器用钢管 交货技术条件 焊接冷精加工钢管 (Steel tubes for precision applications - Technical deli
标准简介
DIN EN 10305-3-2003 精密仪器用钢管 交货技术条件 焊接冷精加工钢管 (Steel tubes for precision applications - Technical delivery conditions - Welded cold sized tubes)
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