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chất lượng Polyaluminium Chloride nhà sản xuất & xuất khẩu - Mua 70% - 90% độ tinh khiết trắng Polyaluminium Chloride bột PAC lọc nước từ Trung Quốc nhà sản xuất.
The normal yellow polyaluminum chloride has a salty degree of 80% or 90%, while the white polyaluminum chloride has a salty basicity of only about 50%. That is, ordinary polyaluminum chloride has a high content of heavy metals. Excessive heavy metal content will affect the safety of drinking water.
