Hagen Biotechnology Co., LTD. is a professional manufacturer which specilized in plant extraction, the effective components of Chinese herbal medicine’s extraction and separation, engaged in providing green, natural, organic and healthy plant extracts, which are widely used as raw materials for pharmaceutical, food additive, healthy food and cosmetic industry. Hagen has a sound management system, strong technical force, advanced technology level,? perfect quality assurance system, complete testing instruments, stable product quality...