Epoxidized Soybean Oil is a kind of nonpoisonous and tastelessPVC plasticiser, it can keep steady under light and  heat ,itsmolar weight is about 1000 , much more than other  plasticiser.So it is very useful for the steady volatilityresistancelower lossand  extend the useful time  for the products of PVC .Itcan be used in all kinds of  products of PVC no matter hard orsoft ,can not only raise the price ,nut also increase theirphysical property machinability. Epoxidized soybean oil  isproviding  conditions for PVC resin entering area of package.