What materials are used in the ventilation duct?

The duct is made of PVC with wear-resistant biaxial polyester high-strength yarn and a spring manganese steel or cold drawn steel ring.

What are the main applications for this product?

It is widely used for mining, tunnel ventilation, indoor ventilation, and parking lot air supply.

Durable PVC Ventilation Duct for Tunnels and Mines

Name: Durable PVC Ventilation Duct for Tunnels and Mines
Brand: Shandong Hanqi Industrial Co., Ltd.
SKU: 2106870705

Shandong, ChinaShandong Hanqi Industrial Co., Ltd.

US$6.00

1-499 Meters

US$5.00

500+ Meters

Sample price:US$6.00/meter.Request sample

Product profile

Customization

Available

Material

PVC

Usage

for Air Conditioner

Model NO.

500mm

Application

Textile

Shape

Threaded

Certification

ISO, CE, CCC

Diameter

100~1500mm or Customized

Environmental Temperature

-20~100℃

Compressive Strength

1000~2000PA

Length

10m or Customized

Weight

470~650GSM

Thickness

0.4~0.6mm

Color

Yellow/Orange/Green/Black/Customized

Feature

Anti-Static/Waterproof/Impact Resistant

Connection Way

Zipper or Eyelet

Included Angle

Customized

Using

Mining/Tunnel/Indoor Ventilation/Parking Lot

Steel Ring Material

Spring Manganese Steel or Cold Drawn Steel

Suspension Clasp Spacing

500mm or Customized

Storage

Freely Bent, Expanded and Contracted

Installation

Easy to Connect and Disassemble by Zipper or Eyele

Transport Package

Export Wooden Package

Specification

According to the order

Trademark

HANQI

Origin

Shandong, China

Production Capacity

20000 Pieces/Year

Key features

Customizable Dimensions: Diameter 100-2000mm and length 10m or customized to fit specific tunnel and mine requirements.

Multi-Color Options: Available in orange, black, green, yellow, or customized colors to meet specific visual needs.

High Durability Features: Wear-resistant, waterproof, flame retardant, antistatic, and explosion-proof with a long service life.

Flexible Installation: Easy to connect and disassemble via zipper or eyelet; freely bent, expanded, and contracted.

OEM/ODM Service: Supports full customization, minor customization, and flexible customization from samples or designs.

High Compressive Strength: Features an elasticity index of 3000Pa-5000Pa and compressive strength of 1000-2000PA.

Certified Quality: Products hold ISO, CE, and CCC certifications ensuring reliability and safety standards.

Company profile

High Repeat Buyers ChoiceCustomization from Samples3D Software DesignProduct Certification

Shandong Hanqi Industrial Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤9.11h

AI-Powered supplier vetting

SummaryShandong Hanqi Industrial Co., Ltd. is identified as a combined industrial company providing design, development, manufacturing, installation, sales, and after-sales services. It reports two production lines, a broad set of manufacturing equipment, inventory capability, written finished-product inspection procedures, and peak- and off-season lead times within 15 working days. The supplier supports extensive customization and ODM services, has introduced new products within the past year, and reports OEM service for well-known brands. However, it reports no supplier-management-system certifications, fewer than five quality-control staff, no valid manufacturing-capacity contract with related subcontractors, no overseas agents, branches, warehouses, or showrooms, and no offline trade-show participation. The provided information does not establish sufficient evidence to assess financial credibility or specific customer cases.

Supplier typeThe supplier is classified as a combined company and describes itself as an industrial enterprise integrating design, development, manufacturing, installation, sales, and after-sales services. It also reports its own factories, a research institute, and strategic cooperation with manufacturers in China.

CertificationsThe supplier-management-system certification field is explicitly recorded as NIL. This is direct evidence that no such certification is reported in the provided information.

R&D capabilityThe supplier reports two years of total R&D engineer experience, a research institute, new products within the past year, and ODM services. These indicators support active product development, although no SDK is available and the depth of the R&D organization is limited in the provided data.

Production capacityThe supplier operates two production lines and lists laser cutting, shearing, rolling, drilling, shot blasting, painting, punching, and welding equipment. It reports inventory capability, written production-service procedures, and lead times within 15 working days in both peak and off seasons; however, it has no valid contract with related subcontractors for manufacturing capacity.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization, and also provides ODM services. The same customization range is reported across both R&D and design-capability records.

Product Q&A

Q:What are the available customization options?

We offer full customization, minor customization, and flexible customization from samples or designs. Specific parameters like diameter, length, color, and connection way can be tailored to your needs.

Q:What is the minimum order quantity?

The minimum order quantity is 1 set.

Q:What certifications do the products have?

Our products are certified with ISO, CE, and CCC standards to ensure quality and safety.

Q:What is the lead time for orders?

The average lead time is within 15 workdays for both peak and off-peak seasons.

Q:What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.