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Standard
| GB/T 21385-2008 Metal-seated ball valve (English Version) |
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Detail of GB/T 21385-2008
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Introduction of GB/T 21385-2008
本标准规定了法兰连接、焊接连接及螺纹连接金属密封球阀的术语、结构型式、技术要求、材料、装配与调试、试验方法、检验规则、标记、铭牌及供货。本标准适用于公称尺寸DN15~DN600 公称压力PN16~PN420的球阀。
Contents of GB/T 21385-2008