Alex Yuma Technology Co.,Ltd

26/11/2025

Stainless steel bars

26/11/2025

14/10/2025

Hammered textured stainless steel decorative panels, friends who have needs can consult me, the price is preferential! Regular size in stock.

Whatsapp:008613711064246

22/08/2025

wooden pattern sheet

17/08/2025

Stainless steel slitting processing line.

12/08/2025

Engineered for Excellence – Premium Manhole Covers Built to Last!
From high-traffic highways to scenic pedestrian zones, Longshen delivers next-generation manhole covers that master the balance of durability, safety, and aesthetic precision—engineered to excel in any environment.
Our Heavy-Duty Solutions:
✔ Stainless Steel – Ultimate corrosion resistance for coastal/chemical-heavy areas
✔ Ductile Iron – Unmatched load-bearing strength (90+ tons) for highways & industrial hubs
✔ Composite Materials – Lightweight durability for parks, campuses & pedestrian safety
✔ Galvanized Steel – Budget-friendly urban solution with extended service life
Why Engineers & Contractors Choose Longshen?
✅ Safety First – Slip-resistant textures & tamper-proof locking systems
✅ Certified Performance – Rigorously tested for extreme traffic & weather conditions
✅ Customizable – Tailored shapes, sizes, and branding integrations
✅ Efficiency Optimized – Lightweight designs cut installation time/costs by up to 30%
Proven in Action:
• Highways: Hong Kong International Airport access roads
• Urban Landmarks: Tsim Sha Tsui waterfront revitalization
• Municipal Systems: Flood-resistant drainage networks
🔗 Let’s Build Resilient Infrastructure Together!
DM us or visit [Website] to discuss project-specific solutions.