Shandong Zheng Biochemical CO., Ltd.

Shandong Zheng  Biochemical CO., Ltd.Is one of the leading chemical enterprises in China, specializing in the manufacture of hygienical raw material(tadanafil, Sildenafil Citrate, Yohimbine HCL), anabolic material(hormone, steroid ), like Boldenone and its series, Methenolone and it is series, Nandrolone and it is series, Testosterone and it is series, pharmaceuticals and fat loss.