Xiangtan fenghe biotechnology co.

Export(at)fhzinc.com we are a real manufacturer of zinc sulphate granular, specializing in zinc sulphate for zinc content 21.5%min (hepta) and 33%min (mono) available. particle size: 0.5-1.5mm, 1.5-2.5mm, 2-4mm with lower heavy metal level.