Cooperation with China National Electric Apparatus Research Institute China Electric Appliance Research Institute Co., Ltd. is a leading enterprise dedicated to professional technical services in the domestic household electrical appliance industry, which is committed to improving the quality of electrical products. It provides high-quality services to 10000 customers in more than 30 countries around the world. It is one of the first batch of transformed scientific research institutes in the country. Now it is subordinate to China Machinery Industry Group Co., Ltd., an important state-owned backbone enterprise directly under the central government.

Cooperation with Hitachi Elevator Hitachi Elevator (China) Co., Ltd. was established in 1996 with the joint investment of China and Japan. Hitachi Elevator mainly produces and operates various types of elevators, household elevators, escalators, moving sidewalks, building intelligent system engineering, etc., integrating product R & D, manufacturing, sales, installation, repair and maintenance. Its comprehensive strength has always ranked among the top three in the industry, and has ranked among the top 500 foreign-invested enterprises in China.

Cooperation with Midea Midea Group is a technology group integrating consumer electronics, HVAC, robotics and automation systems, intelligent supply chain, chip industry and elevator industry. It has about 200 subsidiaries, more than 60 overseas branches and 10 strategic business units worldwide. Midea Group's business includes consumer appliances business mainly focusing on kitchen appliances, refrigerators, washing machines and various small appliances, and HVAC business mainly focusing on heating and ventilation systems such as home air conditioning and central air conditioning.

Cooperation with Chuanghong Motor Co., Ltd Zhejiang Chuanghong Motor Co., Ltd., founded in 1996, is a professional manufacturer of DC permanent magnet motors and brushless motors integrating R & D and manufacturing. It is one of the largest DC motor manufacturers in the Yangtze River Delta region. The company's products are widely used in electric tools, household appliances, automobiles and other industries, selling well in more than 50 countries and regions at home and abroad. It is a supplier of world-famous enterprises Bosch, TTI and Panasonic.

Cooperation with Panasonic Guangdong Panasonic Environmental Systems Co., Ltd. is a wholly-owned enterprise of Panasonic electric in China. As one of the leading enterprises in the field of indoor air quality (IAQ), Guangdong Panasonic Environmental Systems Co., Ltd. is committed to the research of indoor air environment. It mainly develops and produces air exchange and supply equipment, such as air disinfectors, air purifiers, 6C air circulation system, total heat exchangers, fresh air dehumidifiers, air blowers, bath heater, overhead fan, ion generators, dry cell phones, etc Air purification series products, products and services are distributed in more than 40 countries around the world.