In album: Small Sewage Pump
https://www.sylpump.com/product/sewage-pump/small-sewage-pump.html 1.Medium temperature not more than +40℃ 2.Medilum pH value between 5 and 9 3.The volume ratio of solid impuritles in the medium shall not exceed 2% 4.Maximum diving depth not exceeding 5m 5.The operation time of motor dehydration should not be too long
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