Pencils, graphite

tvrdosť ceruziek

Značenie tvrdosti grafitových ceruziek

Európsky systém používa kombináciu písmen H (hard) tvrdý, F (firm) pevný a B (black) mäkký.
Najmäkšia tuha je 9B a najtvrdšia je 9H (čím väčšie číslo - tým väčšia mäkkosť alebo tvrdosť).

Tvrdosť tuhy určuje podiel grafitu a ílu. Čím viac je ílu primiešaného, tým je tuha tvrdšia.

V obchodoch môžete taktiež naraziť na označenie ceruziek 1, 2 a 3, ide o tri najpoužívanejšie tuhy pre školákov.
Ceruzka č. 1 odpovedá tuhe B, ceruzka č. 2 tuhe HB a č. 3 označuje tuhu H.
Jednotka a dvojka sú určené na písanie a kreslenie, trojka je tzv. rysovacou ceruzkou.

Price and labels
Lead Size
(5)
(23)
(15)
(3)
(2)
(2)
(20)
(39)
(1)
(3)
(1)
Leads Hardness
(14)
(3)
(1)
(2)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(25)
(1)
(1)
(1)
(5)
(2)
(26)
(6)
(2)
Producer
(112)
(2)
(9)
(6)
(39)
(17)
(2)
(58)
(39)
(13)
(4)
(57)
(5)
(1)
(80)
(16)
(5)
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Code:271 55

CRT crayon KARMINA ultramarine

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1,51 € with VAT
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Code:271 28

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Code:185011920

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Code:0292

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Code:271 05

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Code:0288

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Code:02326

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Code:517011

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1,2 € with VAT
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Code:471 51

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1,68 € with VAT
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Code:TS1201

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Code:321/02-HB

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1,65 € with VAT
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STAEDTLER "Mars micro" micropencil / brush, B, 0.3 mm, blue
Code:TS77503

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5,44 € with VAT
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Code:B-59063-10

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3,5 € with VAT
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STABILO EASYgraph graphite pencil for right-handed people, pastel green
Code:02327

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1,65 € with VAT
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Watercolor pencil, STAEDTLER "Karat", magenta
Code:TS12520

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1,1 € with VAT
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Code:4907/HB-24

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0,38 € with VAT
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Triangular graphite pencils with eraser
Code:0712370312

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0,23 € with VAT
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CRT crayon MARINO Madder Carmine
Code:241 17

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1,96 € with VAT
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HB STABILO graphite pencil - orange
Code:160/03 - HB

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0,49 € with VAT
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CRT pencil artist nero extrasoft 1
Code:461 01

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1,61 € with VAT
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Pastel pencil KOH-I-NOOR Thick, red 1 pc
Code:0223

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0,64 € with VAT
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CRT crayon MARINO Permanent Red Dark
Code:241 15

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1,96 € with VAT
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STAEDTLER "Mars micro" micropencil / brush, B, 0.7 mm, blue
Code:TS77507

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CRT pencil artist nero medium 3
Code:461 03

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CRT pencil artist black chalk 2
Code:460 12

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1,63 € with VAT
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Code:2160/03 - HB

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0,55 € with VAT
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