Development in future together with you all !

Why Us
1. Founded in 1993, the company has a long history to produce air diffuser profile AIR DIFFUSER PROFILE With 19 years
2. Our professional technical design team develops new products,such as aluminium
3. Our products are widely used all over the country and exported to Europe, America
4. The following are some reasons why you choose us as your Chinese professional

Products Center


Which is located in GUANGZHOU, close to the famous aluminum material city-NANHAI.We established in 1993.Factory is mainly engaged in industry profile such as Clean room profile, purification profile, air grille and air diffuser, air handling unit framework with the thermal break structure, light box for advertisement, electronic radiator, furniture, process line profile and so on. From casting, extruded and the oxidation we use the automatic production line which is import from the US, Japan


China Refrigeration (CRH) 2013

With the target of "Stay on the cutting edge of HVAC&R industry, Build the platform of successful cooperation"...

Chillventa Rossija 2013

Chillventa Rossija is known as the main and well accepted and independent event in the refrigeration...

Russia Exhibition 2

Russia Exhibition 1


Air Distribution and Duct Insulation

Dirt and moisture should not be present in duct systems, and must be controlled to prevent mold growth. However, it is not always possible to assure that ducts remain dirt and moisture free. In many existing schools, sheet metal ducts, as well as those constructed of or lined with insulation products, are often contaminated with mold because dirt and moisture found their way into the system...

Outdoor Air Quantity

Classrooms and other school spaces must be ventilated to remove odors and other pollutants. The national consensus standard for outside air ventilation is ASHRAE Standard 62.1-2001.
If outside air is provided through a mechanical system, then at least 15 cubic feet per minute (cfm) of outside air must be provided for each occupant. A typical classroom with 30 people requires a minimum of 15 x 30 or 450 cfm of outside air...


  • Q: What does HVAC mean? A: While the Energy Center usually tries to avoid the use of acronyms, HVAC is in common use in the heating and cooling industry. It stands for "heating, ventilation and air conditioning," three functions often combined into one system in today's modern homes and buildings...
  • Q: Location of Outdoor Air Intakes and Exhaust A: Proper location of outdoor air intakes can minimize the blockage of airflow and intake of contaminated air. The bottom of air intakes should be at least 8 inches above horizontal surfaces (generally the ground or the roof) to prevent blockage from leaves or snow. In northern locations, more separation may be needed due to greater snow depths or drifting snow...
  • Q: Selection of HVAC Equipment A: In most parts of the country, climatic conditions require that outdoor air must be heated and cooled to provide acceptable thermal comfort for building occupants, requiring the addition of HVAC systems. The selection of equipment for heating, cooling and ventilating the school building is a complex design decision that must balance a great many factors...