Sinrui grommets are used worldwide wherever Removable finned tubes type radiators are employed. These grommets help reduce rebuild times. The Sinrui grommets are produced with a highly modified nitrile rubber and are: Oil resistant Temperature range Built in lubrication system Maintain flexibility and original shape Are developed & formulated specifically for operation in all environment Undergo extensive field testing Have a high temperature range Completely resistant to hydraylic/motor oil & diesel fuel Incredible memory set resistance properties. Currently, the system of removable tubes with rubber seals is the most used by the mining sector due to more versatile maintenance, support for jobs with high vibrations, increased reliability in the equipment and reduction of costs in the medium term.