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[国外标准] BS EN 4807-2017Aerospace series - Flange couplings - Weld coupling90° elbow in heat resisting steel - Inch series

P:2012-02-22 12:30:27

1

求助BS 4807,多谢!

flange angle - (线盘)侧板角度 (0) 投诉

P:2024-03-09 13:13:06

2

digital subscriber line - [100p]数字用户线,数字环路 (0) 投诉

2


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