English to Spanish Tech/Engineering Engineering (general) Flow shelves

Me encuentro con este término en el catálogo de productos de una empresa, sin mucho más contexto: Flow shelves for pallet racks

Encontré esto:

Gravity flow shelving is a first-in, first-out shelving option. It features inclined shelves that allow products to glide from the back loading area to the front picking area. It is available in many widths, lengths, and load capacities to fit your individual storage needs.

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Desde ya muchas gracias.