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WN与LWN法兰的区别是什么?在asme标准 …
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WN与LWN法兰的区别是什么?在asme标准 …
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在asme标准中,小于等于2英寸的法兰一般要用LWN,而大的法兰可以用WN法兰。请问相对于WN法兰,LWN法兰的特点是什么?焊接更容易还是连接更牢固?
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