The main system for polyester polyester, polyester resin, dehumidifying agents, plasticizers, surfactants, synthetic fibers, cosmetics, and as a solvent dye, ink or the like, formulated engine antifreeze, gas dehydration agent, the manufacture of resins , can also be used for cellophane, fiber, leather, adhesives humectant. Produce synthetic resin PET, fiber level PET namely polyester fiber, bottle-grade PET used to produce mineral water bottles. Also produce alkyd resins, glyoxal, also used as antifreeze. Except as automotive antifreeze, but also for industrial refrigeration transport, are commonly called refrigerating medium, but also can be used as a condensing agent like water. Glycol ether products are excellent performance, senior organic solvent, as printing inks, industrial cleaning agents, paint (nitrocellulose paints, varnishes, enamels), CCL, dyeing and other solvents and diluents; can be used for production raw materials pesticide intermediates, pharmaceutical intermediates and synthetic brake fluid and other chemical products; as the electrolytic capacitor, leather dyes and other chemical fiber. Used as textile auxiliaries, synthetic liquid dye, as well as fertilizer production and refining raw desulfurizer and the like.