Evaluation summary: the event was presumed to be due to corrosion of the mounting screws or mounting with excessive force.Non-compatible peracetic acid-based disinfectants are sometimes used in facilities within the emia zone, and corrosion (pitting) progresses in the mounting screws of brass products due to long-term use.It is believed that this corrosion caused the thin-walled portion to become deformed, making it difficult to attach and detach the product.Alternatively, simply tightening with excessive force may cause galling, making it difficult to remove.
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