... resistance of acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oil.WHY CHOOSE OUR RUBBER GROMMET? ... ,and Materials ROHS and REACH approved. NSF61 and FDA21 approved rubber materials are available. 2. Exporting to many countries and well ... received. The countries include USA, England, Poland,France,India, Malaysia, Australia, and so ...