About Us

About Us

Leyuan Engineering is a dedicated manufacturer of industrial piping solutions, specializing in HDPE, PVC, PPR, steel mesh skeleton, and corrugated pipe systems. With advanced production lines and strict quality control, we deliver reliable products that meet industry standards and support infrastructure projects worldwide.

Why Choose Us

Leyuan combines industrial-scale production with rigorous quality control to deliver durable piping solutions that meet project timelines and specifications.
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Meet the Team

Experienced engineers, production specialists and support professionals — committed to quality, on-time delivery and responsive customer service across every project stage.

Projects & Case Studies

Selected projects demonstrating our manufacturing capacity, certified quality, and on-time delivery for industrial and infrastructure clients.
Agricultural Irrigation Pipeline Expansion
For a large agricultural irrigation expansion, Leyuan Engineering delivered HDPE water supply pipes designed
Municipal HDPE Water Supply Network Upgrade
Leyuan Engineering supplied factory-grade HDPE water supply pipes for a municipal pipeline upgrade
OEM Pipe Manufacturing for Overseas Client
Leyuan Engineering provided OEM manufacturing services for an overseas client requiring private-label

Certifications & Compliance

Official quality, safety and testing certificates that validate our manufacturing standards, materials and processes — available for inspection and download.

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Ready to Build with Confidence?

Partner with Leyuan Engineering for reliable pipe manufacturing, consistent quality, and dependable supply for your projects.

Factory & Products Gallery

Authentic photos of our production lines, product stock, site installations and certifications — visual proof of quality, scale and capability.

Frequently Asked Questions

Common questions about our products, production and ordering — concise, clear answers to help you move forward quickly.

Our MOQs depend on product type and diameter. Small-bore items are available in coil or small-batch runs; larger diameters typically require full-length bundle orders. Provide your required sizes and quantities and we’ll confirm the MOQ and pricing.

We maintain documented QC procedures and third-party certificates (e.g., CNAS/IAF where applicable). Each batch can include test reports for material, dimensional checks and performance testing on request.

Lead time varies by product, size and order volume. Stock items ship within days; custom extrusion and large orders typically require 2–6 weeks — we’ll confirm exact timing when you request a quote.

Yes — we offer custom extrusion for specific diameters, wall thicknesses, colors and markings. Send drawings or specs and we’ll provide sample, tooling and production options.

We can supply prototype samples and short trial lengths for evaluation; sample fees may apply and are credited against larger orders in most cases.

We back products with a manufacturing defect warranty and provide post-delivery technical support. Warranty terms vary by product and project — we’ll include specific terms in the sales contract.