[outer diameter 18mm inner diameter 8mm]
[outer diameter 30mm inner diameter 8mm]
[outer diameter 40mm inner diameter 13.5mm]
[outer diameter 12mm inner diameter 4mm]
[outer diameter 30mm inner diameter 6mm]
[外径40mm 内径10mm]
[外径4.3mm 内径2mm]
[外径25mm 内径5mm]
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