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Hollow Tube
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Lateral Roller
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Herringbone groove Roller
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Herringbone Roller
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Chevron groove Roller
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Spreader groove Roller
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Horizontal Rulling grooved Roller
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Knurling Roller/ Knurling grooved Roller with Teflon coating
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Diamend groove Roller
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Helical grooved Roller
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Conductive Roller - Part of the aluminum Roller conducts electricity
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Sandblasting coating
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Cork Roller
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Hard chrome plating coating
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Black anodized coating
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Ceramic coating
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W2 groove
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W3 shallow crossing
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One-way spiral
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Trench Roller
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Wind Roller