Chongqing Excellence Science and Technology CO.,LTD is a manufacturer and exporter, located in Chongqing Province in China. We have two lines of products: one is cast iron parts, gas burners and gas stove parts. Another line is smart lock and wifi lock. At the moment, we have two own factories in Chongqing, as well as more than 200 workers, including 3 senior engineers, 5 engineers, and 16 technicians. With advanced machines and good supply sources, we are able to work out bespoke orders within reasonable time.Due to quality products, reasonable prices and warm service, we has established the stable, reliable and long-term business relationship with lots of customers from America, Germany, Mid East , Eastern Asia and etc. Once you start the cooperation with us, you will get the one stop service from sample developing, mass production to delivery. In order to keep consistent growth in worldwide market, we will develop new products continually and also will improve our service as always. It greatly secures our mass production without counterfeit issue. Strengthened by open mind, prompt service and competitive manufacturing, we are working hard to make more progress.If you are interested in our products, please contact us. Your inquiry will be replied within 24 hours. We are sincerely looking forward to establishing long-term and good partnerships with you. We will always be your ideal partner.