Semi-Trailers · Trucks · Export
Your Fleet, Our Engineering
From flatbeds to tankers — 37 models built in China's trailer capital, shipped worldwide.
Trailers
Semi-Trailers Built for Your Market
Flatbed Semi Trailer
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Lowbed Semi Trailer
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RGN Trailer
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Step Deck Trailer
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Extendable Flatbed Trailer
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Container Chassis Trailer
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Fence Cargo Semi Trailer
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Curtain Side Trailer
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Dry Van Semi Trailer
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Why Sigma Trailer
Factory Direct,
Quality Guaranteed
Based in Liangshan — China's trailer capital — we manufacture 37 models of semi-trailers and trucks, shipping to 50+ countries across Africa, the Middle East, Southeast Asia, South America and Russia.
- Factory-direct pricing, no middlemen
- Full export documentation & RoRo shipping
- Multi-point quality inspection on every unit
Services
End-to-End Support
Custom Manufacturing
Every trailer is built to your specification — axle count, payload, dimensions and accessories tailored to your market's regulations.
Get a Quote →Export & Shipping
Complete export documentation, RoRo and container shipping arrangements, and customs clearance support for the destination country.
Contact →After-Sales Parts
Genuine spare parts for axles, brakes, suspension and hydraulics shipped directly to your workshop worldwide.
Contact →Blog
Latest Posts
Types of Semi Trailers: The Complete Buyer's Guide
There are more than a dozen distinct semi trailer types on the road, each engineered for a specific cargo profile, weight class and loading method.
Read More →Semi Trailer Dimensions & Specifications Guide
Legal length, width, height and axle weight limits vary by country, and getting them wrong means fines or a rejected load at the scale.
Read More →Flatbed vs Lowboy vs Step Deck: Which to Choose
Three open-deck trailers, three different jobs - flatbeds move general freight, lowboys move oversized machinery, step decks split the difference.
Read More →Ready to Build Your Fleet?
Get factory-direct pricing on 37 models of semi-trailers and trucks, shipped worldwide from Liangshan, China.