Introduction：Non-standard design is our advantage.More than 20 years of experience in the HVAC field.
Main products：rooftop units,DX air conditioner,presicion air conditioner,dry cooler,chiller,heat pump,heat pipe and other energy saving products.
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Supplylongerleader Level 1 energy efficient evaporative chiller.longerleader professional in making non-standard energy-sing products，main products:rooftop unit,dry cooler,presicion air conditioner,heat pum
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