国产真人私密毛处按摩视频,少妇富婆高级按摩出水高潮,富婆推油偷高潮叫嗷嗷叫

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                    FeSO4.7H2O
                    Ferrous Sulphate heptahydrate
                    Formula: FeSO4 .7H2O
                    Descriptions:FeSO4 .7H2 O, usually called copperas, is green crystal grains. It has wide uses.
                    Specifications:(Standard No.Q/CYT003-1997)
                    FeSO4 .7H2O>=90%
                    Insolubles in water<=0.5%
                    TiO 2 <=0.5%
                    Uses: Used for manufacture of iron red, iron black and iron yellow.
                    Production of poly-iron sulphate for purification of tap water and treament of waste water in industry.
                    Feed additives for animals.
                    Used in improving alkaline soil.
                    Used for catalysts, mordants and blue inks.
                    Packing:In polyacryl-woven bags lined with polyeth-lene plastic bags, 50kg net each.
                    Note:Store in dry and shady place, not be exposed to the rain and sun.

                    国产真人私密毛处按摩视频,少妇富婆高级按摩出水高潮,富婆推油偷高潮叫嗷嗷叫