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Subject: Re: bouteilles de gaz
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Date: Mon, 17 Apr 23 14:38:26 +0000
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From: Olivier B. <olivier.2a@free.fr>
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Le 17/04/2023 à 00:42, siger a écrit :
> Bonjour,
> 
> pourquoi le raccordement vissé sur les bouteilles de gaz est un 
> filetage à gauche ?
>
C'est un pas à gauche car héritage British

https://fr.wikipedia.org/wiki/Filetage_gaz