Hefei Huazi Waste Oil Recycling Co., Ltd. According to the official website of Hefei Huazi Waste Oil Recycling Co., Ltd., Hefei Huazi Waste Oil Recycling Co., Ltd. is a legal operating enterprise registered and certified by the Ministry of Industry and Information Technology. It is very reliable and legal. It mainly operates waste oil from restaurant companies, Industrial waste oil recovery, ditch waste oil cleaning and transshipment. Hefei, referred to as "Lu" or "He", was called Luzhou, Luyang, and Hefei in ancient times. Hefei was named because the Dongfei River and Nanfei River both originate here.