O-ring NBR 70 ShA: High-quality NBR material with approvals in the food and beverage industry and for gas applications. This NBR material also has a high resistance to mineral oils and fats, water and glycols. ... O-ring NBR 90 ShA: Harder standard NBR with good resistance to mineral oils and fats, water and glycols. NBR: black: 90-30 to +100 ...
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