NSC Gill Box chain

Spec #1: Pitch:9.525mm, 72 pitches
Part No:
NSC GILL BOX GC12/13/14/15: 432A152M
NSC GILL BOX GC30: 432A337V
NSC GILL BOX GV20: 432A233L

Spec #2: Pitch:8, 88 steps
Part No:
SANT ANDREA REBREAKER711:C3511307