Dongan products

EPS Roof Panel

Polystyrene roofing panels provide excellent thermal insulation and energy efficiency for modern buildings. Their structural strength enables them to withstand substantial loads under all weather conditions. Quick installation requires minimal labor and equipment. Suitable for residential, industrial, and commercial spaces, they ensure long‑term performance while reducing construction and operational costs. This versatile solution offers reliable protection and enhanced energy savings, making it a smart choice for high‑quality roofing that stands the test of time.

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EPS Wall Panel

Polystyrene sandwich wall panels are a lightweight prefabricated building material consisting of two outer layers—typically steel or cement sheets—bonded to an insulating core of expanded polystyrene (EPS). They provide excellent thermal and acoustic insulation. Easy to install, durable, and energy-efficient, these polystyrene panels are widely used in residential, commercial, and industrial construction for wall and roof cladding. Their modular design accelerates construction while reducing labor and material costs, making them a popular choice for sustainable, fast-track building projects worldwide.

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Rock Wool Insulation Panel

Insulated panels with rock wool are highly reliable building materials that combine effective thermal insulation, outstanding energy-saving performance, Class A fire resistance, high strength, and ease of installation. They efficiently prevent heat transfer to reduce energy consumption, withstand high temperatures without emitting toxic fumes, and endure harsh operating conditions for long-term, stable performance. Perfectly suited for construction projects, industrial facilities,this versatile panel provides safe, environmentally friendly, and durable insulation, while its simple installation enhances project efficiency, making it a dependable choice for thermal and fire‑protection needs.

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Rock Wool Roof Panel

Roofing panels with rock wool are highly reliable roofing materials that combine effective thermal insulation, outstanding energy-saving performance, Class A fire resistance, excellent weather resistance, and easy, convenient installation. Made from high-quality basalt wool with a reinforced facing, they minimize heat transfer, withstand high temperatures and toxic emissions, and resist wind, rain, and corrosion. Perfectly suited for the roofs of industrial workshops, commercial buildings, and public facilities, they ensure long-term, stable performance while reducing maintenance costs, reliably meeting diverse roofing needs.

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Rock Wool Fireproof Panel

Fire-resistant panels with rock wool are high-performance building materials designed for safety, offering superior fire resistance (Class A), excellent thermal insulation, outstanding energy-saving benefits, robust structural strength, and easy installation. As an inorganic, non-combustible material, they effectively block flames and toxic fumes while limiting heat transfer and reducing energy consumption. They are ideally suited for non-combustible walls, roofs, and partitions in commercial, industrial, and public buildings, protecting lives and property, simplifying construction, and lowering electricity and project costs—making them a reliable, fire-safe choice.

Dongan products

EPS Roof Panel

Polystyrene roofing panels provide excellent thermal insulation and energy efficiency for modern buildings. Their structural strength enables them to withstand substantial loads under all weather conditions. Quick installation requires minimal labor and equipment. Suitable for residential, industrial, and commercial spaces, they ensure long‑term performance while reducing construction and operational costs. This versatile solution offers reliable protection and enhanced energy savings, making it a smart choice for high‑quality roofing that stands the test of time.

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Polyurethane sandwich panel

The metal carving panel is composed of the outer surface of the metal embossing plate and thermal insulation material composite. The outer layer is made of aluminum alloy plate, aluminum-zinc plated steel plate and other metal panels. According to the needs, the surface is coated with special coatings of different colors, which are rolled into patterns of different styles by specific equipment, or coated into various colors after secondary coating to form patterns and colors such as brick patterns, spring coating patterns, water ripples, wood patterns, gravel, fine stones, etc. to meet the appearance requirements of architectural shapes and colors and achieve certain artistic effects. Thermal insulation polyurethane foam (PU, PIR).

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Cold room for flowers

The cold room for flowers is equipped with a specialized climate-control system designed specifically for cut flowers. This system precisely regulates temperature and humidity, ensuring optimal storage conditions that significantly extend the flowers’ shelf life. The chamber maintains a low temperature, typically between 1°C and 5°C, which markedly slows down the flowers’ respiration and aging processes. Importantly, it also sustains a high relative humidity—ranging from 90% to 95%. This humid environment effectively prevents wilting and dehydration.

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Cold room for flowers

The cold room for flowers is equipped with a specialized climate-control system designed specifically for cut flowers. This system precisely regulates temperature and humidity, ensuring optimal storage conditions that significantly extend the flowers’ shelf life. The chamber maintains a low temperature, typically between 1°C and 5°C, which markedly slows down the flowers’ respiration and aging processes. Importantly, it also sustains a high relative humidity—ranging from 90% to 95%. This humid environment effectively prevents wilting and dehydration.

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Cold rooms for fruits and vegetables

Cold rooms for fruits and vegetables help keep produce fresh for an extended period. They slow down the natural aging process and protect sensitive goods from fluctuations in temperature and humidity. The system creates a controlled environment that maintains stable temperature, humidity, and air composition. Farmers, supermarkets, and distributors use this type of storage to minimize losses and ensure consistent supplies, supporting daily sales and long-distance transportation. The facility operates effectively across diverse climatic conditions and provides reliable performance for a wide range of products. Many users trust this system because it keeps food safe and simplifies inventory management.

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Cold rooms for seeds

Cold rooms for seeds are specialized facilities designed for long-term preservation. They are essential for modern agriculture and scientific research. Farmers and seed‑production companies must store their seed stocks with utmost care. Such storage solutions maintain seed viability for many years by effectively slowing down the seeds’ natural metabolic processes, thereby preventing premature aging and protecting against insect damage and fungal growth. These chambers provide a stable, controlled environment, allowing users to easily regulate the internal microclimate, which ensures high germination rates at planting time. Seed‑storage refrigeration units offer optimal conditions for agricultural investments.

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Cold rooms for meat

Cold rooms for meat keep meat fresh and safe for extended periods. They maintain a stable low-temperature environment for beef, pork, lamb, and poultry. The system precisely controls temperature and humidity, protecting the meat from spoilage and inhibiting bacterial growth. Butchers and processors rely on it to ensure food safety. The cold environment preserves meat freshness over long durations, preventing spoilage and maintaining its original texture. Proper storage also helps retain essential nutrients and flavor.

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Seafood cold storage rooms

Seafood cold storage rooms ensure the proper preservation of valuable aquatic products. These systems maintain extremely low temperatures to effectively inhibit bacterial growth. Operators use them to keep fish, shrimp, and shellfish fresh. The technology guarantees that the fish retains a firm texture and its original flavor. Freshness directly determines the market value of the catch. This storage solution significantly extends shelf life, preventing spoilage during long-distance transport or warehouse storage. Fisheries companies rely on this equipment every day, making it an essential link in the global seafood supply chain.

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D series air cooler (750)

The air cooler is a device that uses the principle of water evaporation to reduce the air temperature. It is efficient, energy-saving and economical, and is especially suitable for dry environments and local cooling needs.

Dongan products

D series air cooler (750)

The air cooler is a device that uses the principle of water evaporation to reduce the air temperature. It is efficient, energy-saving and economical, and is especially suitable for dry environments and local cooling needs.

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FNV condenser

A condenser is a device that cools a gas or vapor into a liquid. It is widely used in the fields of refrigeration, air conditioning, chemical industry and electric power. The main function of the condenser is to convert the gas into a liquid by cooling the gas to its condensation point, releasing the latent heat. Common condenser types include air-cooled, liquid-cooled, and vapor-cooled. Each type has its specific application scenario and working principle.

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DHF air cooler

The air cooler is a device that uses the principle of water evaporation to reduce the air temperature. It is efficient, energy-saving and economical, and is especially suitable for dry environments and local cooling needs.

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LSLG water chiller

A chiller is a refrigeration device used to provide cooling water. Its main function is to cool the water to the required temperature to meet various cooling needs.

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LSQ water chiller

A chiller is a refrigeration device used to provide cooling water. Its main function is to cool the water to the required temperature to meet various cooling needs.

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Type U470 (360 degree bite type)

Dongan color steel profiled plate is a kind of building plate which is made of color coated steel plate, galvanized steel plate and so on. It is suitable for industrial and civil buildings, warehouses, special buildings, roofs, walls and interior and exterior wall decorations of large-span steel structure houses.

Dongan products

Type U470 (360 degree bite type)

Dongan color steel profiled plate is a kind of building plate which is made of color coated steel plate, galvanized steel plate and so on. It is suitable for industrial and civil buildings, warehouses, special buildings, roofs, walls and interior and exterior wall decorations of large-span steel structure houses.

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YX66-394-788 type (360 degree bite type)

There are more than 30 varieties, more than 30 production lines, and the annual sales volume has reached more than 3 million square meters, which is in a leading position in the domestic market.

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YX51-380-760 type (360 degree bite type)

Features: high crest, high strength, no screw lock edge bite installation

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YX54-410-820 type (180 degree bite type)

Dongan color steel profiled plate is a kind of building plate which is made of color coated steel plate, galvanized steel plate and so on. It is suitable for industrial and civil buildings, warehouses, special buildings, roofs, walls and interior and exterior wall decorations of large-span steel structure houses.

Dongan products

YX25-210-840 type

Note: the processing thickness of profiled steel plate is generally 0.4-1.0mm

Dongan products

Polyurethane sandwich panel

The metal carving panel is composed of the outer surface of the metal embossing plate and thermal insulation material composite. The outer layer is made of aluminum alloy plate, aluminum-zinc plated steel plate and other metal panels. According to the needs, the surface is coated with special coatings of different colors, which are rolled into patterns of different styles by specific equipment, or coated into various colors after secondary coating to form patterns and colors such as brick patterns, spring coating patterns, water ripples, wood patterns, gravel, fine stones, etc. to meet the appearance requirements of architectural shapes and colors and achieve certain artistic effects. Thermal insulation polyurethane foam (PU, PIR).

UPVC door

UPVC door combine modern aesthetics with excellent energy efficiency. Manufacturers install thermal insulation directly within the aluminum frame. This plastic barrier effectively prevents heat from transferring through the metal. A rigid, high-density foam core completely fills the door panel. Homeowners can achieve significant savings on heating and cooling year-round. The durable aluminum construction is resistant to corrosion, deformation, and strong impacts. These doors require virtually no maintenance over their long service life, providing reliable protection without compromising style. This solution is ideally suited for both commercial spaces and residential homes.

Anti-Theft Door

A premium‑class Anti-Theft door provides maximum safety. The Anti-Theft door features a robust, reinforced internal structure. This door ensures you complete peace of mind. A multi‑point locking system offers reliable protection. You’ll enjoy smooth, quiet operation. The door opens and closes effortlessly. Excellent thermal insulation ensures comfort in your home and significantly reduces external noise levels. We’ve designed the frame for easy installation, making it ideal for standard door openings. This durable door combines security with everyday convenience, making it a smart investment for any property.

Siding door

Sliding doors optimize space in busy warehouses and factories. Instead of swinging outward, they slide horizontally along a track, preserving valuable floor space for storage or equipment. Their robust rollers support large, durable steel or fiberglass panels. Automation options allow forklifts to pass through without stopping. These doors provide protection against wind, dust, and noise in harsh environments. Businesses choose them to efficiently seal wide openings. Simple mechanics significantly reduce maintenance requirements. Built to last, these sturdy barriers ensure smooth operations and long‑term reliability.

Thermal break aluminum door

Thermal break aluminum doors offer exceptional value for any entrance. Their reinforced PVC frame ensures the structure’s durability. Multi-chamber profiles provide excellent thermal insulation, allowing you to immediately enjoy reduced energy costs. The door operates with remarkable smoothness, with all moving parts working in perfect harmony. We’ve developed a system for seamless installation. Thermal break aluminum doors are suitable for standard openings without major modifications. This door is naturally resistant to weathering and corrosion. Choose it for its reliable performance and modern aesthetics. Its robust construction guarantees years of dependable service.

Swing door

Swing doors deliver outstanding performance even under heavy use. Their innovative design provides excellent thermal insulation, helping you save significant amounts of energy. A robust construction ensures years of reliable operation. Precise engineering guarantees smooth, quiet daily performance. We’ve optimized the installation process to enhance efficiency. Swing doors complement a wide range of commercial and institutional spaces, combining enduring functionality with clean aesthetics. Choose this solution for superior quality and exceptional performance. The door maintains flawless operation over prolonged use.