Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Camber on the rolls
Offset on the rolls
Hardening of the rolls
Antifriction bearings

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Workshop Technology
Sand wash is a casting defect which

Occurs near the ingates as rough lumps on the surface of a casting
Results in general enlargement of the casting
Results in a mismatching of the top and bottom parts of a casting
Occurs as sand patches on the upper surface of a casting

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