Shandong Guibang Pharma Co.,Ltd. is a newly established factory to produce pharmaceutical intermediates and new chemical materials. Our main products are 1,3-Propane Sultone; Poly(vinylphosphinc Acid); API: Roflumilast, Avanafil, Macitentan, Ivabradine hydrobromide, Meptazinol hydrochloride, etc.Welcome customers to inquiry and visit us!