Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. Dayang Chem (Hangzhou) Co.,Ltd.還提供6-Hydrazinylbenzothiazole的。 We act also as agent of many chemical factories and promote their products to the international m ...
