This is a pattern with a heat wave at the bottom of the box. According to relevant public information, the fermentation temperature is generally heated from bottom to top, so the sign of fermentation in Galanz oven is generally a pattern of heat wave under a box. Guangdong Galanz Group Co., Ltd. is a comprehensive provider of white goods and smart home solutions, and one of the leading enterprises with extensive international influence in China's home appliance industry. 1992 entered the household appliance industry, and Galanz microwave ovens developed from scratch, from the first in China to the first in the world.