"Based on domestic market and expand overseas business" is our development strategy for passitive house ventilation system, Commercial Projects , Commercial Projects , Holtop Industrial Air Conditioning System Solutions ,villa fresh air ventilation sytem . We attend seriously to produce and behave with integrity, and because of the favor of clients in your house and abroad in the xxx industry. The product will supply to all over the world, such as Europe, America, Australia,Cologne , Albania ,Cape Town , France .Our company's main items are widely used all over the world; 80% of our products and solutions exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.