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DoubleWin Biological Technology Co., Ltd is a professional crude drug manufacturer which integrates production, R&D and sales. The technology ability is strong. We specialize in Pharmaceutical Chemical, Steroid, anabolic steroid hormone raw powders including Testosterone Enanthate, Testosterone Propionate, Trenbolone Acetate, Oxandrolone, Methandienone, Oxymetholone, Stanozolol, Nandrolone Decanoate, Boldenone Undecylenate, Dromostanolone Propionate, Methenolone Enanthate and son on. It has built cooperation relations with many universities, research centers as well as pharmacy manufacturers. The enterprise owns advanced production arts and various fermentation method originated from abroad. |