Royal intelnational limited

Since 1998, Royal International Limited has been serving customers all over the world with an extensive line of high quality chemical industry products. it specialized in R&D and manufacturing naphthalene-based super plasticizers and its formula products.The good quality price and competitive price with excellent service is the goal we run. Our main item is building materials, including: Naphthalene-besed Superplasticizer FDN-05 FDN-10 FDN-20 FDN-30