... assortment Material: NBR Spec: 30 sizes, total 382 pcs, JIS B 2401 standard 1. NBR rubber O ring ... blue, yellow, green5) Spec: 30 sizes, total 382 pcs, JIS B 2401 standardCatalohue Details : Model No. O ring kits/ ... blue, yellow, green Spec 30 sizes, total 382 pcs, JIS B 2401 standard2. We have below O ring kits ... , please contact with us. high-quality 382 pcs NBR rubber O ring kit/o ring assortment ...