After more than ten years of development, Anhui Huanrui has passed the certification of SO9001 quality management system, ISO14001 environmental management system, and ISO45001 occupational health and safety management system. Its electric heat tracing products have passed global authoritative certifications such as EU CE certification, ROHS environmental safety testing, Austria CE, Russia GOST certification, Russia EAC, Germany TUV, Europe ATEX, and Canada CSA certification, In 2019, it obtained IEC ex certification from French Classification Society and UL certification from the United States.