Recently, a customer representative visited our company's production base in person to conduct on-site quality inspection of the refractory bricks of custom-made production sizes. During the inspection process, the customer adopted the industry-standard tapping inspection method and conducted a comprehensive inspection of the products through sound identification.

Rigorous testing highlights outstanding quality
Customers randomly select refractory bricks of different batches and conduct knocking tests with professional tools. All the inspected products emitted a clear and pleasant metallic sound without any dull noise, indicating that the internal structure of the brick body was dense and uniform, and there were no hidden cracks or porosity defects.

Customized services win trust
The refractory bricks accepted this time were designed with special dimensions provided by the customer. During the production process, through precise raw material ratios and constant-temperature sintering technology, the dual standards of strength and size were ultimately achieved.

This inspection of goods is not only an affirmation of our production capacity, but also a new starting point for the deepening of strategic cooperation between the two sides. Qunhui Company will continue to provide refractory material solutions for global customers with the product standards of "resonant as a chime and firm as iron".