L-Tryptophan

We are Hebei Runbin Biotechnology Co., LTD., mainly dealing in pharmaceutical intermediates and various chemicals.We are a manufacturer with our own factory.Company is mainly engaged in biotechnology research and development, technical advice, technical services and other chemical products (excluding hazardous chemicals), medical supplies and equipment, glass products, electronic products, stationery, sporting goods, machinery and equipment, instruments and meters, sales of convention and exhibition services, goods and technology import and export (countries ban or relating to the administrative examination and approval and the import and export goods except).Pharmaceutical intermediates, chemical products, additives, pigments pharmaceutical grade, industrial grade, food grade, daily chemical products Hebei Huan Hao Biological Technology Co., Ltd. registered capital of 3 million yuan.Our aim is: to the quality of survival, credibility and development.We work with friends around the world to develop the best quality products, the most reasonable price, safe and effective transportation.Products can be ordered from milligrams to tons.Meet the purchase needs of new and old customers.Integrity management is our principle, customer satisfaction is always our goal, we hope that through our efforts, get your recognition!