GRAND CASTLE INCORPORATION was set up in 1990 and it has already been in operation for twenty-five years now. We already have over fifteen years of experience in making top-of-the-line oral hygiene products. Maintaining thoroughness and care throughout, our products meet the standard of cleanliness and are available in a number of countries.A complete set of facilities, many years of experience in the molding process, a well production and packaging environment, as well as well-trained staffs and a full line of products with high standards of cleanliness.We received the ISO certificate 9001 in 2003, this has been a certification of assurance as well as the beginning of a new step. The following are our principles and always be followed: ??Thorough and careful attention to the production and packaging process.??Strict quality restriction and consideration of sanitation.??Unceasing innovation to meet the demands of a changing marketplace and customer satisfaction.