LPG cylinder codes: What do the alphanumeric codes painted on a gas cylinder mean?

A small code on your gas cylinder indicates its expiry/testing date, revealing its safety status. Here’s how to read it.
Interesting Engineering

China trials deep sea actuator for cutting cables and pipelines at 3,500m depth

A Chinese mission validates a deep-sea electro-hydrostatic actuator for cutting pipelines under extreme pressure.

Rare Frick Steam Locomotive and Mining Cars Headline Aumann Auctions Pre-1930 Sale

Eight auctions, rare finds, and a one-of-a-kind steam locomotive highlight Aumann's Pre-1930 Auction series. NOKOMIS, IL / ACCESS Newswire / April 17, 2026 / Aumann Auctions is proud to present a ...

China tests submarine cable cutter at 3,500-metre depth

Trial described as bridging 'last mile' from deep-sea equipment development to engineering application, suggesting deployment ...

China tests deep-sea electro-hydrostatic actuator that can cut undersea cables at a depth of 3,500 meters — state hails successful trial and hints at deployment readiness

China has successfully tested a "deep-sea electro-hydrostatic actuator" that can cut undersea cables at a depth of 3,500 ...