Building 2 1 Dream Mill Square, chenghua district, Chengdu (on-site registration is available). Leshan can get the hazardous chemicals certificate at Building 2 1 of Mengmofang Square in chenghua district (registration can be made on site). Chengdu Wangtai Education has a formal registration office, and the operation certificate of hazardous chemicals can be registered at any time. The pass rate is high and can be checked by the State Grid. This is common all over the country.