Tank system and pressure vessel manufacturer

Focusing on heavy industry equipment for 20 years

One-stop professional services cover the entire process of design, manufacturing, installation, and maintenance, ensuring efficient, stable, and reliable operation of central air conditioning, industrial water tanks, and water treatment systems.

Product customization

Tailor-made solutions to meet the individual needs of different industries.

Strict quality control

ISO-certified production with rigorous testing for durability and reliability.

Professional team

Experienced R&D team driving continuous innovation and upgrades.

Global Support

Serving global clients with fast response and localized support.

Dezhou Zhengling International Trade Co., Ltd.

We are a comprehensive enterprise specializing in the research, development, and manufacturing of central air conditioning terminal equipment, industrial water tanks, and water treatment systems. Adhering to the philosophy of “innovation, quality, service, and win-win,” we are committed to providing customers with integrated solutions that are efficient, energy-saving, and environmentally friendly.Well-known for its strong industry influence. Since its establishment, the company has become a leading exporter with excellent product quality and perfect service system.

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Global clients

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Tailor-made system solutions

Learn how advanced manufacturing solutions can improve your efficiency, precision, and product quality. Partner with us to take your operations to the next level with cutting-edge technology and expert support.

Full-chain manufacturing capabilities

From precision parts to complete digital factory solutions, we offer integrated production across the entire value chain.

Intelligent Production Lines

Equipped with automated forming, punching, and assembly lines, we deliver consistent quality with high efficiency.

Advanced R&D Partnerships

Collaborating with top universities and global research teams, we drive innovation in ultra-precise transmission and smart equipment.

Industrial water tanks

Fiberglass water tank

Fiberglass water tanks utilize lightweight, high-strength materials, making them easy to transport and install while maintaining a stable structure under long-term loads and in complex environments, resisting deformation and damage.

Made from high-quality fiberglass, they offer exceptional acid, alkali, and corrosion resistance, ensuring a long service life even in humid, acidic, or alkaline environments.

stainless steel water tank

Stainless steel water tanks are constructed from high-quality stainless steel sheets, offering exceptional corrosion and oxidation resistance. They maintain their pristine appearance and durable structure even in humid or harsh environments.
The rationally designed structure offers high strength and excellent sealing, ensuring water quality and hygienic handling while also withstanding high water pressure shocks and preventing leakage or deformation.

Underground water tank

Underground water tanks are installed underground, eliminating floor space and effectively conserving building land. They are particularly suitable for urban areas with limited land or where maintaining an aesthetically pleasing surface is crucial.

The tanks are completely hidden underground, providing a stable and reliable water storage solution for residential communities, factories, shopping malls, schools, and other locations without disrupting the landscape or the surrounding environment.

Product Categories

Central air conditioning and its terminal products

Our central air conditioners and terminal equipment are guaranteed by advanced heat exchange technology and strict quality standards, achieving precise regulation of indoor air and long-term stable operation, creating a green, environmentally friendly, energy-saving and efficient user experience for customers.

Industrial water tank products

Industrial water tanks are made of high-quality materials and advanced technology. They are corrosion-resistant, pressure-resistant, and have a long service life. They can maintain stable performance in complex environments and meet the strict requirements of different industries for water storage and water treatment.

Water treatment equipment products

Our water treatment equipment integrates multiple technologies including physical filtration, chemical treatment and intelligent control. It can not only effectively remove impurities and harmful substances, but also maintain the long-term stability of the effluent quality, fully meeting the needs of different scenarios.

Applicable industries

Whether it is a large commercial complex, public service facility, or precision manufacturing workshop and water treatment project, we can provide efficient, energy-saving, stable and reliable integrated solutions.

Hot-selling products

Our best-selling product series covers central air-conditioning terminals, industrial water tanks and water treatment equipment. With its high efficiency and energy saving, stable and reliable performance, high quality and durability, we have won the long-term trust and praise of customers in various industries.

Industrial water tanks

Underground water tank

Industrial water tanks

stainless steel water tank

Fiberglass water tank

Galvanized water tank

Fiberglass water tank

Air Conditioning Unit

Air-Cooled Modular Units

Air Conditioning Unit

Combined Air Handling Units

Heat Exchange Equipment

Direct Expansion (DX) Units

water treatment equipment

Filtration Equipment

Our Services

We are committed to providing customers with one-stop professional services from solution design, product supply to installation and commissioning and after-sales maintenance to ensure the efficient and stable operation of central air-conditioning, industrial water tanks and water treatment systems.

Customized solutions

We tailor integrated solutions for central air-conditioning terminals, industrial water tanks, and water treatment systems to customer needs, ensuring the project achieves the best balance between performance, energy efficiency, and cost.

Installation and commissioning support

Provide professional installation guidance and on-site commissioning services to ensure efficient and safe operation of the equipment and create a comfortable and stable user experience for customers.

After-sales maintenance and technical support

Establish a comprehensive after-sales service system to provide regular testing, maintenance, and upgrade support to keep the system running stably in the long term and reduce customer operation and maintenance risks and costs.

Service Process

With customer needs as the core, we formulate clear processes to ensure that each link is implemented accurately.

Demand Communication

Understand the project background, usage scenarios and functional requirements to ensure accurate solution matching.

Solution Design

Carry out systematic design according to needs and develop personalized solutions.

Product Manufacturing

Pay attention to details and quality control to ensure the stability and durability of the equipment.

Acceptance and delivery

Comprehensively test the system's operating status to ensure project satisfaction.

Contact us — we’re here to help

No matter where you are, our professional team will respond quickly and provide you with timely and efficient support.

Most Popular Questions

What are the advantages of our central air-conditioning terminal products?

Our products have obvious advantages in energy saving and environmental protection, operational stability, intelligent control and comfort, and can provide customers with efficient and reliable solutions.

What is the difference between our water treatment equipment and ordinary equipment?

Our water treatment equipment uses high-efficiency filtration and intelligent control systems, with stronger water purification capabilities and lower energy consumption, suitable for long-term operation and high-standard water use sites.

How do I choose the right product?

You can tell us the usage scenario, project requirements and budget, and our engineers will recommend the most suitable central air-conditioning terminal equipment, water tank or water treatment solution for you.

How do we ensure the quality of our products?

The company strictly implements the international quality management system, controls the entire process from material selection, design, production to delivery, and passes multiple tests and certifications to ensure that the products are stable, reliable and safe to use.

Can the company provide a one-stop solution?

Yes, we provide one-stop service from solution design, product supply, engineering construction to after-sales maintenance, helping customers save time and costs.

Which industries are suitable for using our products?

Our products are suitable for a variety of industries including real estate development, hotel management, medical institutions, educational venues, industrial manufacturing, public buildings, food and beverage, etc.