[通拓商品]270pcs Assortment Kit Car HNBR A/C System Air Conditioning O Ring Seals Set Tool

Features

1、270pcs in a case totally and 18 kind of O-rings by sizes.
2、Suitable for professional plumping, supplies, tools, automotive, garage, plumber, mechanic, workshops, repairs, air &gas connections.
3、The o-ring assortment set is packed by a snap-close clear view plastic case with compartments for identification.
4、The heavy duty rubber rings is available for using in applications requiring higher resistance to chemicals and higher temperatures than NBR.
5、Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR),HNBR can be formulated to meet application temperatures ranging between -45 degrees C and 165 degrees C, and HNBR is classified by ASTM as DH-type polymer.