Desrition
The checker brick is widely used in regenerator and flame furnace of glass industry and blast furnace hot blast stove of iron&steel industry to preserve heat and then to convert cold air into hot air. 
Quality Control
Process Quality Control:
Starting from the raw material into factory, Every production process of our castable should through strict quality control, In addition to rigorous process control, our quality control team inspects the output of each process to ensure material quality and consistency. We do our best to supply the products with best quality to satisfy our customers.
Raw Material Selection:
To ensure the quality of our raw materials, we only purchase our raw materials from our long-term trusted suppliers. With every purchase, the raw material must be passed 2 times inspecition, 1 time at our supplier’s site. a second inspection on the batch after the material arrived to our factory. Each time raw materials enter our facility, they are inspected again prior to being accepted.
Our advantage
1. Scale: Four factories and one International trade company
2. History: Specialized in manufacturing refractory products about 20 years
3. capacity: 6000 ton/month
4. Process equipment: international advanced automatic batching system and brick machinery equipment. 
5. Certification: IS0 certificate,LIRR test, BV and TUV certificate is allowable
6. Main products: Refractory brick; raw refractory material, refractory brick, refractory castable, etc.
7.Trading nation: More than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
Packaging & Shipping
1) Fast delievery accepted by customers.
2) Delivery within 7-25 days after your payment. 
3) Our  Magnesia Aluminum Alkaline Refractory Castable is packed in 25Kg woven bag+Ton bag(Fumigation wooden pallets), or as customers' requirements.

Technical date

Dengda services
1.ISO 9001 Certificate;
2.Construction instructions and designing services are provided by our professional technicists.
3.Inspectors make sure the semi-finished product standard in process and finished product perfect.
4.Customize size are welcome,OEM,ODM acceptable 
5.Professional chemical analysts check all the material before production.
6.Best after-sale-service.