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.