In 1996, DEC Mach Elec. & Equip(Beijing) Co., Ltd. was formed by Holland Environment Group Company (“DEC Group”) with an amount of CNY ten million and five hundred thousand of registered capital; is one of the largest manufacturers of flexible pipe in the world, is a transnational corporation specializing in manufacture of various kinds of ventilation pipes. Its products of flexible ventilation pipe have passed quality certification tests in more than 20 countries such as American UL181 and British BS476.
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Our Mission
Create value for customers and create wealth for employees!
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Our Vision
Become one of the global leading companies in the flexible air duct and fabric expansion joint industry!
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Our Expertise
Manufacturing flexible air ducts and fabric expansion joints!
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Our Experience
A professional flexible air duct supplier since 1996!
Our Application
The annual flexible pipe output of DEC Group is over five hundred thousand(500,000) Km, amounting to more than ten times of the circumference of the earth. After more than ten years of development in Asia, now DEC Group continuously supply high quality flexible pipes to a variety of our domestic and overseas industries of such as construction, nuclear energy, military, electron, space transportation, machinery, agriculture, steel refinery.
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News Center
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The Importance of Insulated Aluminum Air Ducts
30/10/24
In the realm of modern HVAC systems, efficiency, durability, and noise reduction are paramount. One often overlooked but crucial component that plays a major role in achieving these objectives is the insulated aluminu... -
Different Types of Air Ducts Explained
15/08/24
Air ducts are the unseen workhorses of HVAC systems, transporting conditioned air throughout a building to maintain comfortable indoor temperatures and air quality. But with various types of air ducts available, choos... -
What is an Air Duct and How Does it Work?
24/07/24
Air ducts are essential components of heating, ventilation, and air conditioning (HVAC) systems, playing a crucial role in maintaining comfortable indoor temperatures and air quality. These hidden conduits transport c... -
What are the advantages of Flexible PVC film air duct
13/05/24
1. Cost effectiveness: Flexible PVC air ducts generally have a lower cost compared to other materials, which makes it a cost-effective option on a limited budget. 2. Easy installation: PVC duct is lighter than metal p... -
The Advantages and Considerations of Flexible PVC Film Air Duct for HVAC Systems
13/05/24
Flexible PVC film air duct, also known as PVC ducting or flex duct, is a type of air duct that is made from flexible polyvinyl chloride (PVC) film. It is commonly used in heating, ventilation, and air conditioning (H...