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Pulley Surface Finish
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Type
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Available for
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Characteristics
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Anodized
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Aluminum Pulleys
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increased chemical and corrosion resistance
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available in natural, black, or colored
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limited increase of surface hardness
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aesthetic treatment
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Hard Anodized
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Aluminum Pulleys
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excellent chemical and corrosion resistance
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increased surface hardness
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for abrasive environments
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stainless steel flanges recommended
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Black Oxide
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Steel Pulleys
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increased chemical and corrosion resistance
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aesthetic treatment
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Zinc plated
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Steel Pulleys
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increased corrosion resistance
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Chromate
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Steel Pulleys
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increased chemical and corrosion resistance
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