详情
        The DUR-O-Test uses a needle under an adjustable pressure spring to create a scratch on the coated surface.
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		Can be used for flat or curved surfaces
 
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		Pocket size device
 
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		Locking screw to fix the spring tension
 
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		Three pressure springs available for a wide spring force range
 
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		Needle made of tungsten carbide for long life
 
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