Municipal castings,
built to U.S. spec.
Ductile iron and composite manhole covers, grates, and meter boxes — factory-direct, with a California sales office.
- 20+Years manufacturing
- 140Acre factory
- 100k+Tons / yr capacity
- ISO 9001 Quality
- ISO 14001 Environment
- ISO 45001 Health & Safety
- CE Marked
- EN 124 Tested
- SGS QIP Audited
- ASTM A536 Material
- AASHTO H-20 Load Rated
Direct from the factory. Backed in California.
Most overseas casting suppliers are either a U.S. distributor with a markup, or a Chinese factory with no U.S. presence. We're the integrated path: factory-direct pricing, U.S. business hours, English RFQs, and project-ready documentation.
U.S. point of contact
Luster Infrastructure LLC is incorporated in California. RFQs answered in English, on Pacific time, by someone you can call. Drawings, submittals, and project clarification handled stateside.
Built to U.S. standards
ASTM A536, AASHTO H-20 / HS-20, AASHTO M306 proof loading, SPPWC plan equivalence. Material certs and test records prepared per project spec — no mystery metal, no documentation gaps.
Composite saves on tariff
Composite covers land at the lower (~7.5%) Section 301 schedule vs ductile iron (~25%). On bulk orders that's a material per-unit savings — plus zero scrap value to eliminate theft losses for utilities.
Four families. Configurable to spec.
Ductile Iron Manhole Covers & Frames
3 productsASTM A536 / AASHTO H-20 traffic-rated castings
Round and square covers and frames in ASTM A536 ductile iron — traffic-rated, anti-settlement, and precast-compatible.
Composite (BMC/SMC) Manhole Covers
3 productsAnti-theft, corrosion-proof, 60% lighter than ductile iron
Fiberglass BMC/SMC covers — theft-proof, corrosion-proof, signal-transparent, and 60% lighter than ductile iron.
Drainage Grates & Trench Covers
3 productsCatch basin, curb inlet, and trench drain grates
Galvanized iron and composite grates for catch basins, curb inlets, and trench drains — bicycle-safe slot options.
Water Meter Boxes & Utility Enclosures
2 productsAMR-ready composite enclosures for water utilities
Composite meter boxes for water utilities — signal-transparent for AMR reads and corrosion-proof outdoors.
A 140-acre integrated foundry in Wuhan.
Hubei LZB Metal Products operates 10 ductile iron production lines and 30+ composite hydraulic presses across a 140+ acre site, with in-house spectroscopy and load testing. We don't broker — we cast, mold, finish, and ship from a single integrated facility.
Capabilities & factory tour →Have a project? Get a quote in 48 hours.
Share your spec, drawing, or standard plan number. We confirm fit, pricing, and lead time fast — direct from the factory with a U.S. point of contact.