Outer diameter: 4mm for 1.75mm filament,
Inner diameter: 2mm for 1.75mm filament,
High and low temperture resistance
Good dielectric properties
The static friction coefficient is the smallest of plastic
The aging of the climate-resistant
10 meter 2*4 tube
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• Quality Warranty
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2.90 Days of quality warranty .
3.Defective items must be returned within the warranty period.
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