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
[attach]153382[/attach]