Luzhongbao EN124 Ductile Iron Manhole Cover Solutions Launch at VIETBUILD HCMC 2025
Arming Urban Underground Arteries with "Safety Armor"
Luzhongbao EN124 Ductile Iron Manhole Cover Solutions Launch at VIETBUILD HCMC 2025
June 25-29, 2025 | Booth A2-634

Subtitle: The Overlooked Ground Defense
As Vietnam accelerates urbanization, manhole covers bearing over 30kg/cm² serve as the first line of defense for road safety.
—Yet according to the Vietnam Infrastructure Association, road accidents caused by cover failures surged 17% YoY in 2024.
Luzhongbao’s Mission
To engineer ductile iron cover systems for Southeast Asia that deliver Zero-Settlement, Zero-Theft, Zero-Pollution – exceeding EU EN124 standards.
I. Technical Foundation: The 30-Year Maintenance-Free Promise
At Booth A2-634, witness three breakthrough technologies:
1. Molecular-Level Structural Reinforcement
Rare earth magnesium alloy nodularization creates dense spherical graphite structures within the iron, achieving 550 MPa tensile strength (20% above EN124’s highest class). Eliminates structural fractures under heavy truck loads.
2. Climate-Adaptive Protective Coating
- Base Layer: ≥80μm hot-dip zinc resists electrochemical corrosion
- Surface Layer: Polyurethane elastomer withstands mechanical abrasion
- Third-party tests confirm >95% coating integrity after 5 years in simulated HCMC monsoon conditions.
3. The Silent Guardian
Patented T-shaped rubber gasket + ductile iron base form a dual damping system, reducing vehicle transit noise to <62 dB (meeting residential night-time standards).
II. Innovations for Vietnam’s Challenges
Monsoon Edition: 35% enlarged drainage pores – 2x faster water clearance (verified under 120mm/h downpours)
Industrial Zone Upgrade: Anti-slip edge grooves prevent forklift-induced displacement
Cultural Customization: Surface reliefs of city flowers, emblems, or cultural symbols
III. Exhibition Engagement Toolkit
Lifecycle Cost Analysis Service
Bring project parameters to our booth for:
10-Year Maintenance Cost Simulation (vs. traditional covers)
Carbon Footprint Assessment (95% ductile iron recyclability)

IV. An Open Letter to Municipal Engineers
When you ask:
“How to reduce public cover theft?”
Our solution: Triple-point mechanical locks + GPS chip slot – theft rate reduced to 0.3 cases/1,000 units/year.
“How to prevent cover displacement during typhoons?”
Our answer: F900-class covers weighing 80kg – require >5-ton impact force to move.
Exhibition Details
Event: VIETBUILD HCMC International Construction Exhibition 2025
Dates: June 25–29, 2025 (Daily 9:00–17:00)
Booth: Hall A2-634
RSVP: +86 15272534753
Closing Statement
Beneath the cover flows the city’s lifeblood.
Above it lies the people’s safe passage.
Luzhongbao honors its safety covenant with iron-clad resolve –
To forge roads that endure millions of heavy crossings,
To guard cities with silent vigilance.
Join us at Booth A2-634, June 25–29, 2025
To lay the foundation of urban safety.