i want to make sure i am reading this correctly, it is 10 pieces, and EACH peice is 48 inches in length, so 480 in total? thanks

10 pieces, 48” each for total length of 480 inches

what is the width of each piece, not the length but the width? Not the package, but the width of each metal piece.

2020 stock is 20mm by 20mm. 2030 would be 20mm by 30mm. and so on. You need to be careful as this only gives you the gross external dimensions. The PROFILE may be different from one supplier to the another AND the purpose may be slightly different. For example, a "V" slot extrusion is specifically for a linear rail system. What you see here is specifically for a T slot hold dawn. In practice I've seen people use the different profiles interchangeably but performance may suffer.

Is it possible to bend these beams on the pipe bender so that the rollers can roll freely on them? A circle with a diameter of half a meter

It is unlikely you could bend it well. This is T5 meaning the hardened level. T6 is typically the maximum. The harness provides strength but makes bending difficult. With all the structure you may not get the channel fit that it has pre bend. If the bend radius is shallow enough you might be able to make it work. As a wild guess I would think it would be well under 10 degree bend. The anodizing also will not like being bent.

The description states european standard extrusion, which is 6mm? but it also states m5 at 5mm? is the slot 5mm or 6mm?

Slot width is 6mm. The M5 is in reference to common hardware that is compatible with this size extrusion but not a reference to the slot width.

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🛠️ Build Bold, Build Black: The Backbone of Next-Level DIY Innovation

BULK PACK EFFICIENCY - 10 pieces per pack means you’re ready to build or upgrade multiple projects without delay.
MULTI INDUSTRY READY - Perfect for automation, laser stands, furniture, fitness equipment, and beyond—engineered to elevate your DIY game.
SLEEK ANODIZED FINISH - Smooth, clean black anodized surface not only looks premium but resists wear and corrosion over time.
ENGINEERED FOR PRECISION - European standard 6063-T5 aluminum ensures unmatched durability and rigidity for your 3D printer or CNC setup.
VERSATILE MODULAR DESIGN - Compatible with M3, M4, M5 T-slot nuts and pulleys for effortless customization and expansion.

This 10-pack of 48-inch European standard 2020 T-type aluminum extrusions is crafted from high-strength 6063-T5 material with a smooth anodized black finish. Designed for precision linear motion and modular assembly, these profiles support M3, M4, and M5 T-slot nuts and pulleys, making them ideal for professional-grade 3D printers, CNC machines, and a wide range of automation and DIY projects.

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Manufacturer	IXGNIJ
Part number	6880
Item Weight	5.53 kg
Product Dimensions	122 x 2 x 2 cm; 5.53 kg
Item model number	2020T
Size	Black 10PCS
Style	2020
Finish	Smooth
Material	aluminum_6063
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No

10pcs T Type 2020 Aluminum Extrusion 48'',European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 1220mm Black(48inch)

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