Copper sulfate,cupric sulfate,CuSO4 (1)Factory direct supply (2)Good quality (3) ... (4)Timely delivery I. We are manufacturer of copper sulfate,cupric sulfate,bluestone,Copper sulfate pentahydrate,CuSO4, blue vitriol,cuprum sulfuricum ... prices(4)Timely delivery(5)Many spefications. III. Cooper sulfate,cupric sulfate,bluestone,Copper sulfate pentahydrate,CuSO4, blue vitriol,cuprum sulfuricum ...