Hangzhou Tianlong Biotechnology Co., Ltd. (formerly Hangzhou Yilong Chemical Co., Ltd. founded in 2004) is a leading crop protection technology provider located in the world famous city - Hangzhou, China. We are professional in offering agrochemicals and relative products. We export these products to more than 50 countries in the world. We specialize in the research and development of pesticide techniques and formulations. We provide kinds of pesticide formulations such as WP, WDG, SC, EC, ...