... glands. Internal pressure dynamics and static.Clear o ringsare available in a variety of materials, ... movement, no crawling phenomenon. Production DetailsItem:Clear O RingsMaterial:NBR,HNBR,XNBR,EPDM,SIL,FKM( ... 30~90 Shore ASize Standard:AS/BS/JIS B /ISO /DIN/GBColor:Black,Brown,White,Red ... other packing according to your needs.Sample:FreeClear O Rings samplesAfter-Sales Service: 100% responsible for ...