31.75 pitch leaf chain AL1022 industrial chain OEM ODM acceptable 

Features: high driving speed,high-toughness,impact resistance,high-precision,fatigue resistance

 wear resistance...etc.

 Operation requirement: good-lubrication,sprockets must be on the same plane.

 Application: mainly used in motorcycle engine(timing chain) and driving systems(drive chain).

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if you are interesting , welcome to inquiry ! 

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