





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


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.

