270Pcs HNBR Rubber O Ring Seal Kit Car Air Conditioning A/C Repair Tool 18 Sizes

Rubber 270 Pcs 18 Sizes Kit Air Conditioning HNBR O Rings Car Auto Vehicle Repair Tools Air Conditioning Refrigerant Ring. Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR) and is for mission critical applications.

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