 ShangHai ShuangFeng Chemical Co.,Ltd. (SF co.) is a family business company, we have two factories, one is chemical machinery and equipment manufacture factory, which can supply all kinds of liquid transfer equipment, and powder dosing system. we are good at design speical dosing equipment and liquid transfer pump and electrolytic device. we are good at manufacture dosing pump, chemical pump, high pressure pump, teflon pump, centrifugal pump and so on.. you can get the waste water treatment project method, cooling water circulation project method, Sodium Hypochlorite Mixture and dosing method, Phosphate Mixture and dosing method for free.
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