There are several Huiyun engineers in Wanda Shopping Mall.

There are four Huiyun engineers in Wanda Shopping Mall. Huiyun engineer is responsible for the overall work of the company's fire alarm system, linkage control system, gas fire extinguishing system, emergency broadcasting system, telecom program-controlled computer system, security monitoring system, network alarm system and other equipment to ensure the safe operation of the equipment within the scope of his duties.