Shanghai Chenchang Power Technology Co., Ltd. is the No. 1 natural gas, LPG powered engine inventor and manufacturer. Our factory located in Shanghai. Our major products are: Natural gas, LPG generator set, 0.8KW 1.0KW 1.5KW 2.0KW 3.0KW 4.0KW 5.0KW . Natural gas, LPG water pump: 2inch 3inch 4inch Should you need further information about our products, pls feel free to contact us. Our professional team will be very glad to serve your esteemed company.