Hangzhou Heshan Technology Co., Ltd. moved to Zhongtai Industrial Park, Greentown, Yuhang District, West Hangzhou, on October 8, 2012. It specializes in R&D and manufacture of elevator car air conditioners, elevator car air purifiers, hydraulic elevator oil coolers and other products. Committed to research in the fields of air purification, ventilation and energy saving, and energy recovery.

The company currently promotes the ninth-generation intelligent elevator air conditioner with a complete range of 50Hz series and 60Hz series; high-efficiency environmentally friendly refrigerant series (using R410A refrigerant), etc., with intelligent control, drip-free treatment, high efficiency and energy saving, Features such as low noise, green environmental protection, health and energy saving; its advanced water treatment method, highly automated intelligent control system and automatic dust removal of air-conditioning heat exchanger technologies have obtained a number of national patents. After more than ten years of sustained and stable development, a large number of "Heshan" brand elevator special air conditioners have been equipped for many brand elevators. The products are sold all over the world and are well received by users.