Sales of following products - SF6 GAZ dielectric agent for high voltage- ETHYLENE OXIDE for sdterilization- HF in solutions for glass and metal treatment- SO2 in wine process - SO2 in glass production- NH3 for nitruration- solvents- detergents- drying agents - chlorine for water treatment - recycling used SF6 gas- equipement for the transfert and the handling of SF6 ga