Je voudrais une réponse (en Français)
Je ne peux ouvrir ce fichier ! Les autres destinataires n'ont pas ce problème. (J'ai la version 2020.006.20042 à jour)
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Ready Bobbo commented
Hi, when you sit on the chair for a long time and work very hard, your lower back relaxes without the necessary support and your lower back becomes deformed. What would you have that you should use a chair which has a mechanism that will support your pelvis and not let your back sag. You can find such a chair here https://corechair.com/