TIANJIN UNITED & TECHNICAL CHEMICALS CO.,LTD is specializing in manufacturing and exporting chemical raw material .our main products : caustic soda, Sodium Formate,Formic Acid,Oxalic Acid,Glacial Acetic Acid,Titanium Dioxide,Zinc Oxide,Lithopone,STPP,SHMP, etc .If you have any interest ,pls let us know . we can supply good quality at competitive price