Shanghai Okonoff Electrical Co., Ltd. designs and manufactures HVAC products. Our company was founded in June 2000 and located at Shanghai Songjiang Science and Technology Park. We have own Research and Design Department, 12 sales office and technical branches in many cities of China. Until now, we have been one of the biggest and famous heating ventilating & auto-controlling manufacturers in China. We can manufacture more than 50, 000, 000 pieces of thermostats and valves every year with good production line and strict quality test equipment. Most of our products have passed the evaluation of ISO9001, CE and UL certification and they sell well in a lot of countries around the world and also in big cities of China. We also provide OEM business for lots of famous international companies. We welcome your telephone and visit to our company.