Henan Sun Rain Biotechnology Co., Ltd. is a high-tech enterprise specialized in the research and development of chemical intermediates and additives. Our company has 10 senior engineers and professors whose major are polymer chemistry, chemical analysis, plant protection, pesticides, plant physiology and so on. Our company owns a laboratory equipped with advanced analysis and synthesis equipment. The scale of our laboratory ranks the forefront of the industry. Based on Henan Sida ...