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(NCT) Manual 2010 - Road Safety Authority

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35<br />

BODYWORK<br />

NATIONAL CAR TEST (<strong>NCT</strong>) MANUAL <strong>2010</strong><br />

Surface Rust<br />

Rust removable by rubbing. When<br />

cleaned it reveals a smooth clean<br />

surface.<br />

PARENT METAL<br />

Advanced Rust<br />

Rust concentration or pits.<br />

Removal leaves pit marks which<br />

can only be eliminated by removal<br />

of parent metal.<br />

PARENT METAL<br />

Extensive Rust<br />

Rust flakes - removal of which<br />

leaves a very rough or holed<br />

surface. Pits go right through and<br />

cause eruption on far side.<br />

PARENT METAL<br />

58

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