[ maintenance service case ] BY938 quick patch and By939 special patch to trap liner repair case
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DeviceTitle：
[ maintenance service case ] BY938 quick patch and By939 special patch to trap liner repair case
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DeviceName：
Catcher
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DeviceProblem：
The original whole of the trap is lined with glue, the effect of long-term immersion, resulting in corrosion and penetration, so that the original lining Harden, bulge, delamination, need to do on-site anti-corrosion treatment.
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