BS EN 13445-6-2009 无燃烧压力容器 由球形石墨铸铁生产的压力容
BS EN 13445-6-2009 Unfired pressure vessels — Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron谢谢您的分享,金币已奖励! Best Regard
Thanks for your sharing
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