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标题: BS 1560-3.2-1989 Circular flanges for pipes, valves and fittings (Class designat [打印本页]

作者: killer007    时间: 2017-11-16 18:07:27     标题: BS 1560-3.2-1989 Circular flanges for pipes, valves and fittings (Class designat

BS 1560-3.2-1989 Circular flanges for pipes, valves and fittings (Class designated) — Part 3 Steel, cast iron and copper alloy flanges — Section 3.1 Specification for cast iron flanges
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作者: admin    时间: 2017-11-17 11:09:32


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