Product Overview

Corrugated Pipe for Subway Passage is a galvanized steel pipe for underground support, drainage, and protection of tunnels and utility lines, suitable for metro construction and public infrastructure projects.

Product Advantages

High Load Capacity: Corrugated pipe transfers soil pressure into circumferential compression, providing reliable support for metro tunnels and pedestrian passages.

Durable Carbon Steel: Q235 or Q345 carbon steel provides high load and impact resistance for underground use.

Corrosion Resistance: Hot-dip galvanization ≥84 μm ensures decades of protection against underground moisture.

Modular Assembly: Prefabricated pipe sections allow fast on-site joining, shortening installation time for long tunnels.

Customization Services

Custom Dimensions: Tailor pipe diameter, wall thickness (3–12 mm), and corrugation pitch to your project needs.

Material Options: Select from Q235 or Q345 carbon steel for different environmental and load conditions.

Surface Coating Options: Choose from hot-dip galvanization, epoxy, or polyurethane for enhanced corrosion resistance.

Reinforcement Options: Customized pipe reinforcement for added strength in heavy-load or seismic areas.

Factory Advantages

Advanced Technology: Automated rolling and CNC plasma cutting ensure precision for large orders.

Bulk Production: Ample stock and efficient lines allow fast fulfillment of large-scale orders.

Quality Control: Rigorous checks ensure strength, durability, and compliance with international standards.

Competitive Pricing: Direct manufacturing eliminates middlemen, offering cost-effective solutions.

FAQ

Q: What is the delivery time for standard products?

A: Standard products are typically shipped within 7–15 business days after order confirmation. Custom products will be shipped within 20–30 business days, depending on the specifications.

Q: How do you ensure the safety of products during shipping?

A: We use shockproof and moisture-resistant packaging to protect the products during transport. For added protection, we can offer customized packaging solutions tailored to your specific shipping requirements.

Q: Do you provide after-sales service?

A: Yes, all our products come with after-sales support. Our dedicated team offers one-on-one assistance to resolve any issues quickly and effectively during product use.

Q: Can your factory handle bulk orders?

A: Yes, we have sufficient raw material stock and production capacity to fulfill large-scale projects, ensuring timely delivery without compromising quality.

Q: What is the minimum order quantity (MOQ)?

A: Our MOQ depends on the product specifications. Generally, the MOQ is flexible to accommodate both small and large-scale orders, making it suitable for various project sizes.

Q: How are the products shipped?

A: We offer flexible shipping methods, including sea freight, air freight, and land transportation, depending on your location and order size. We ensure safe and efficient packaging to prevent damage during transport.

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