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Dongsheng (Zhangjiagang) Environmental Protection Technology Co., Ltd. – Established in 2018, we specialize in high-performance ETFE and Teflon-coated stainless steel duct systems for semiconductor, pharmaceutical, panel, and integrated circuit industries.

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About Dongsheng

Dongsheng (Zhangjiagang) Environmental Protection Technology Co., Ltd. was established on January 25, 2018, with a registered capital of 80 million yuan. Located in Zhangjiagang City, Suzhou, we are a leading manufacturer of high-quality industrial ventilation systems.

Our core expertise lies in the production and manufacturing of Teflon-lined spraying stainless steel air ducts, stainless steel air ducts, air valves, and various air fittings. We also produce stainless steel angle iron flanges, galvanized and carbon steel flanges, and flat flanges.

With a strong focus on innovation and environmental protection, we serve industries such as semiconductors, panels, integrated circuits, and pharmaceuticals—where clean, corrosion-resistant, and durable ventilation systems are critical.

Our Corporate Culture

Through years of hard work and entrepreneurship, Dongsheng has always adhered to the management concept of "people-oriented." We have cultivated a team of high-quality professionals with rich experience in reform, innovation, and advanced management. By implementing clear organizational responsibilities and continuous improvement, we ensure excellence in every product we deliver.

Our Product Range

Premium ETFE and Teflon-coated stainless steel components for industrial ventilation and environmental protection systems.

SUS304 Teflon Coating Straight Tee

Corrosion-resistant duct fitting ideal for cleanroom and high-purity environments.

SUS304 Teflon Coating Concentric Reducer

Smooth transition fitting for duct systems requiring diameter changes.

SUS304 Teflon Coating Volume Damper

Precision airflow control valve with durable Teflon coating.

SUS304 Teflon Coating Straight Duct

High-strength, chemically inert duct for aggressive environments.

SUS304 Teflon Coating 90° Elbow (5 Gore)

Low-turbulence elbow for efficient airflow in tight spaces.

SUS304 Teflon Coating 45° Elbow (3 Gore)

Optimized for directional changes with minimal pressure drop.

SUS304 Teflon Coating Offset

Duct fitting for parallel alignment adjustments in complex layouts.

SUS304 Teflon Coating End Cap

Sealing solution for duct terminations in corrosive environments.

Rectangular Type Volume Damper

Customizable airflow regulation for rectangular duct systems.

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Why Choose Dongsheng?

Engineered for performance, durability, and environmental safety in critical industrial applications.

Corrosion Resistance

Teflon and ETFE coatings provide unmatched protection against chemical corrosion in harsh environments.

Industrial-Grade Quality

Precision manufacturing ensures leak-free, high-pressure performance in semiconductor and pharmaceutical facilities.

Environmental Protection

Our systems support clean air standards and sustainable industrial operations.

Frequently Asked Questions

Find answers to common inquiries about our products and services.

What industries do you serve?

We specialize in serving the semiconductor, panel, integrated circuit, pharmaceutical, and high-tech manufacturing industries where clean, corrosion-resistant ventilation is essential.

What materials do you use?

Our primary material is SUS304 stainless steel, coated with Teflon or ETFE for enhanced chemical resistance and durability.

Do you offer custom designs?

Yes, we provide design and manufacturing services tailored to specific project requirements and spatial constraints.

What are the advantages of Teflon-coated ducts?

Teflon coating offers excellent resistance to acids, alkalis, and high temperatures, ensuring long service life and minimal maintenance in aggressive environments.

Get in Touch

For product inquiries, technical support, or partnership opportunities, visit our official website to connect with our team.

No. 8, Dianchang Road, Anqing Village, Fenghuang Town, Zhangjiagang City, Suzhou City

+86 0512-58925333

+86 15051421198

[email protected]

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