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English Translations » 信息处理 » Quality issues with cast-welded valves

Quality issues with cast-welded valves

2009-02-08View Original

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Today, while repairing pipes, I discovered that the internal part of the cast-welded butterfly valve had sand holes, which prevented the valve from being able to control steam. Are all cast parts defective? Or is it a problem with the casting process?
Reply #22009-02-09
Could you be a bit more specific? Why is trachoma considered a manufacturing issue?

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Translated at 2026-07-28 05:57:12

Original: https://bbs.hcbbs.com/thread-385163-1-1.html

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