We Manufacture Phenolic Resin For Refractory Material,Foundry(Coated Sand),Brake Pad And Lining ... phenol and formaldehyde resin,use for producing refractory material(magnesium carbon brick,aluminum magnesium carbon brick, stopper rod,long nozzle,sliding gate ... residual carbon quantity,which can improve corrosion-resistant capability of refractory product under high temperatute. Don’t need to add ...