Treatment of materials, namely, production, refining, processing and purification of petroleum, natural gas, refinery gases, gas, liquid gas and chemicals; reclamation of production waste through separation, treatment, gather and removal of waste of all kinds, namely, waste minimization, namely, incineration and destruction of waste, waste recycling, industrial toxic waste disposal, decommissioning, namely, incineration and destruction of waste

[ Installations for the dissociation, purification, washing, liquefying and re-evaporation of gases, petroleum, petroleum fractions, refinery gases, natural gas, namely, oil purifying installations, separators for the cleaning and purification of gases and liquid, gas purification machines, crude oil distillation unit, vacuum distillation unit for separation of gas, gasoline, naphtha, kerosene and gas oil from crude oil; gas treating and processing plants, namely, hydrogen and synthetic gas g...