As a state-level hi-tech company, Shandong Topscience Biotech Co., Ltd. (STB) is specialized in R&D, production, sales of biochemical intermediates and APIs.Products include Chondroitin Sulfate Sodium, Sodium Hyaluronate, HCG, HMG, FSH, Proteinases, enzyme inhibitors, etc., which comply with standards of EP and USP.STB has a all-sided selection & evaluation system on suppliers and an effective collection network for starting materials, according to cGMP r...