... experience 1 ABOUT OUR COMPANY Tianjin Bohai Chemical Industry Group Supply And Sales Company is a large-scale ... "soda ash,"HongSanJing"caustic soda & PVC resin, Maleic anhydride, TD detergents, sodium metasilicate pentahydrate,etc. we have established ... -butanediol, tetrahydrofuran, y-propyl, and many small manufacturing hydrogenated anhydride. items ValueContent ,%≥99.55Molten Color (Pt - Co), APHA ...