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Faydal? modelin patent n?mr?si: ZL201220705818.X

Qab?r?alar v? xarici g?vd? 10 mm polad l?vh?l?rd?n, daxili dair? v? konus is? 4 mm polad l?vh?l?rd?n haz?rlanm??d?r tamd?r v? faktiki ??rtl?r? uy?un dizayn edil? bil?r.

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