... : Flake and Briquette 4,Application: It used in production of unsaturated polyester resin, in coating, pharmaceutics, agricultural, surfactant, additive of plastics ... naphthol, bon acid. 2,locationOur company is located in Tangshan which is famous for its iron and steel ... in2006, a water reducer plant in 2007, and a dinaphthol plant in 2008. Furthermore, in order to sharpen our international ...