... sorbate;Day of oil: lecithin, VE, cod liver oil, oleic acid, glycerol, fatty acids, waste oil, alkyl polyglycosides, alcohol ether sulfate, etc ... : polyamide resin, epoxy resin, paraformaldehyde, PPS (sebacic acid esters of polypropylene), PBT acrylic acid ester;Synthetic: PTA, DMT, carbon fiber, poly-tetrahydrofuran, polyether ...