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CAS: 7758-29-4 94% Na5p3o10 Sodium Tripolyphosphate STPP for Detergent, Find Details and Price about 7758-29-4 Sodium Tripolyphosphate from CAS: 7758-29-4 94% Na5p3o10 Sodium Tripolyphosphate STPP for Detergent - QINGDAO CHEUNG CHEMISTRY CO., LTD