Welcome to Yancheng Langde Chem company, where you will access high quality products, competitive prices and excellent logistics services. Yancheng Langde Chemical & Pharmaceutical Co., Ltd. is a new and developing enterprise encompassing technology and industry. Langde Chem Company mainly produce APIs (Anti-Convulsant), Indanone Catena, Indole Catena, Tetralone Catena, Cinnamic acid catena, Hydrocinnamic acid catena, acetylene catena, Methylenedioxy benzene ramification, Intermediate of Liq...