air Ring Silicone for semi Truck - Set Rubber O Ring,18 Sizes 270pcs Car Truck Replacement Air Conditioning Green O-Ring Tools

Assortment O-Rings with convenient resealable plastic case for air con o rings, Assortment O-Rings with convenient resealable plastic case for air con o rings, Total 18 most popular used Sizes for 18 sizes car air-conditioning rubber o ring tools, Hydrogenated Nitrile Rubber (HNBR), also known as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR) and is for mission critical application for car air con tools, HNBR can be formulated to meet application temperatures ranging between -45 degrees C and 165 degrees C for air con seal merch c220d, HNBR is classified by ASTM as DH-type polymer for r134a o rings, , , ,