Template:Potd/2011-11-22 (en)
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This is the English translation of the Picture of the day description page from 22 November 2011.
Layout of a roller chain:
1: Outer plate; 2: Inner plate; 3: Pin; 4: Bushing; 5: Roller
1: Outer plate; 2: Inner plate; 3: Pin; 4: Bushing; 5: Roller
Descriptions in other languages: