Protonitazene

Shanghai Longyu biotech Co., Ltd. is a company engaged in the import and export of pharmaceutical and chemical raw materials and intermediates.

It has been actively committed to the collection and development of new and old products, Adhering to the principle of "Honesty-oriented, customer First" and after long-term steady development, the company has been highly-praised by the customers due to it high-quality products and good reputation that it has been a leading Chinese company in the import and export of pharmaceutical and chemical raw materials. Our products have been widely sold to many countries and regions that we have established long-term stable relations of cooperation with the traders and end users all around the world and have become a solid bridge among the suppliers, traders and end users.