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Specification
14PC Stock:
I.D:10mm,O.D:12mm  I.D:22mm,O.D:24mm
I.D:12mm,O.D:14mm  I.D:25mm,O.D:27mm
I.D:14mm,O.D:16mm  I.D:28mm,O.D:30mm
I.D:15mm,O.D:17mm  I.D:30mm,O.D:34mm
I.D:16mm,O.D:18mm  I.D:32mm,O.D:36mm
I.D:18mm,O.D:20mm  I.D:35mm,O.D:40mm
I.D:20mm,O.D:22mm  I.D:38mm,O.D:42mm