mullite sand

As a subsidiary of the OBT Group, OBT Refractory Manufacture CO., LTD has been manufacturing foundry and refractory materials for more than 16 years. Our stable quality and good after-sales service help us to obtain high feedback from European, South America, Japan, Thailand, Taiwan, Vietnam, Cambodia, Philippine, Malaysia, etc.After 16 years of development, we have become a world renowned company which meet the needs and solves the problems of customers with foundry materials. We will focus on listening to the changing needs of customers and using the power of our core values to be better. We welcome new and old customers from all walks of life to contact us for future business and mutual benefits.