/ Production archive

Machining and inspection facilities

Photographic records of our multi-axis CNC machinery, calibrated hydrostatic test benches, and staged export shipments inside our Longwan production bays.

Shop floor verification

Machining and test fixtures

Photographic inspection records documenting precision CNC lathe operations, pressure hold benchmarks, machined flange faces, and palletized export inventory.

Export preparation

Seaworthy crating protocols

Every valve order undergoes flange face protection with heavy-duty polyethylene blind covers, internal desiccant placement, and sealed vapor corrosion inhibitor wrapping. Units are nested within fumigated plywood cases bolted to reinforced base skids.

Reinforced corner battens and moisture-resistant internal lining protect machined surfaces from saline atmospheric corrosion during multi-week marine transit. Custom stencil markings and heat numbers match accompanying material test certificates.

Specify inspection parameters

Submit your hydro-test hold times, third-party witness inspection requirements, or custom tagging schedules directly to our Longwan engineering team.