Cold water enzyme powder 1.PH:6~7 3.Certificate:ISO9001 4.Support any payment and freight ... Cold water enzyme powder1>Description• Appearance: light yellow powder • PH:6~72>Using1, Hair removal effect is good, no back to ... waste water treatment level.5, Dosage 0.5 ~ 2.0%, bath ratio, 4:1, temperature: 35 to 45 degrees Celsius, time 25 ...