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1pc 25-40 Tooth 04C Chain Gear 45# Steel 8mm-15mm Bore Industrial Sprocket Wheel Motor Chain Drive Sprocket Tooth Pitch 6.35mm - AliExpress
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Steel Sprocket Chain | Steel Sprocket Wheel | Steel Drive Sprocket | Gear Chain 6.35mm - Gear - Aliexpress
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HARFINGTON B Type Roller Chain Sprocket 20 Teeth 14mm Bore Stainless Steel Motor Drive Gear for Chain DIN/ISO No. 04C-1 and ANSI No. #25: Amazon.com: Industrial & Scientific
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