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Discussion
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I put a spectacle just after a butterfly valve, that is: flange-butterfly valve-spectacle-flange. I think it should be ok. Is there any one has a different opinion about this?
thanks for your reply.
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I put a spectacle just after a butterfly valve, that is: flange-butterfly valve-spectacle-flange. I think it should be ok. Is there any one has a different opinion about this?
thanks for your reply.
Log in to reply.
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