5PCS/lot Fluorine Rubber FKM O-rings Seals CS1.8mm ID31.5/32.5/33.5/34.5/35.5/36.5/37.5/38/38.7*1.8mm O Ring Seal Gasket Washer

5PCS/lot Fluorine Rubber FKM O-rings Seals CS1.8mm ID31.5/32.5/33.5/34.5/35.5/36.5/37.5/38/38.7*1.8mm O Ring Seal Gasket Washer

Aliexpress UK