... 25 kg.Uses:it is mainly used for the production of unsaturated polyester, then used in medicine, pesticides, paints, oil additives, ... and fine chemicals. For this year, a large number of 1.4-butanediol, tetrahydrofuran, y-propyl, and many small ... worldwide such as "HongSanJiao"soda ash,"HongSanJing"caustic soda & PVC resin, Maleic anhydride, TD detergents, sodium metasilicate pentahydrate,etc. we ...