... )no noice, no leakage, environmental freindly 2)specialize in circulating pump, 3)high quality Circulating pumpa) Specificationb) ApplicationIt can be ... suburb,house,to match with industrial equipment,to supply water in cycle for cooling air-condition,boiler and solar energy, ... supply hot water and keep warm in cycle,etc.c) the ceritifications we appriovedCE certification,UL ...