420 Pcs/32 Sizes Rubber Tap 0-Ring Sealing Gasket Washer Seal Assortment Set High Grade Rubber O-Ring Kit for Maintenance, Plumbing, Engineers and Numerous Tasks Feature Widely used as sealing rings and washer for connectors in hydraulic machines, pipelines, etc. The NBR can withstand the temperature of 120 degrees centigrade. And it is resistant to wear and good to oil-proof. They are small, delicate, fine, durable and strictly functional. Specifications Material: NBR Quantity and Sizes: 420 pieces / 32 popular sizes Net weight: approx. 600g Hardness: 70 Shores They are made of standard DIN7715 Package Included 1 x 420 Pcs Rubber O-Ring Seal Gasket
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