... shape and appearance: black solid; Physical and chemical parameters: propolis content: 98.2%; lead content: 1ppm below; total ... flavonoids: 14.5 or more.2. Propolis is a bee tree buds from plants, bark and other ... a positive protective effect, inhibiting the tumor, addition, propolis hepatitis, cirrhosis, constipation, polyps, gallstones are the ... T/TSupply Ability:1000Tons/year pure bee propolis