In the metallurgical industry, SJQ products are mainly used in continuous casting machine, before and after hot rolling and conveying roller table of heating furnace. According to the application characteristics of continuous operation of continuous casting machine under high temperature, heavy load and heavy pollution, SJQ has developed a series of products specially for continuous casting machine, which are mainly used in crystallizer vibration device, fan-shaped section and slab conveying roller table in cooling section, and have been successfully applied in the production lines of many steel mills at home and abroad.