The guarantee of quality come from standard services.

OBT has been manufacturing and supplying foundy and refractory materials for more than 20 years. Our stable quality and good after-sales service help us to obtain high feedback from European, South America, Japan,Thailand, Korea,Taiwan, Vietnam, Cambodia, Philippine, Malaysia, etc.

Our product range:

Mullite sand

Colloidal Silica

Pattern Wax

Chemical additive

Application:

Precision Investment Casting

Lost Wax Casting

Refractory Bricks Manufacturing

Coatings industry

Textile industry

Paper industry

Petroleum industry

Ceramic industry

Electronic polishing industry

Our advantage:

--No.1 largest mullite sand and foundry materials manufacturing and supplying plant in China

--200000tons-500000tons production capacity

--8 own calcining kilns , maximum 10% cost reduction benefit to customers

--5 days of the minimum delivery period

--No dust,Low abrasion, higher hardness, uniform particle size distribution makes it the most suitable to the manufacturing process.

After 20 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