Слово встречается в следующем контексте: packaging specification L-ring drum

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L-Ring® Drums
30 years ago, the L-Ring® Drum set an international standard for the safe transport of liquid dangerous goods. Today, it is the most common plastic packaging on the market.

* one-piece blow moulded
* UN approved
* sizes 120L and 220L
* globally available
* designed for high density and aggressive fill goods
* stackable due to high mechanical stress resistance
* closure systems for different customer requirements
* available with integrated extraction systems