graphite pencils

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
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Leads Hardness
(5)
(3)
(1)
(2)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(24)
(1)
(5)
(20)
Producer
(20)
(1)
(6)
(26)
(13)
(30)
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(12)
(4)
(17)
(1)
(71)
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(5)
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Code:07126712

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Code:B-59063-10

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Wooden pencils PASTEL 2B triangular shape - 12pcs
Code:215021

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Code:160/HB

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Code:6317

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0,16 € with VAT
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Code:511911

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Code:UKL321

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74,76 € with VAT
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Pencil STABILO EASYgraph S Ergo left-right - 48 pcs
Code:UK325

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56,57 € with VAT
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STABILO EASYgraph graphite pencil for left-handed people - pink
Code:321/01-HB

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1,65 € with VAT
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Code:0201

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0,34 € with VAT
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Graphite pencil KOH-I-NOOR 7B, 1 pc
Code:0286

Graphite pencil KOH-I-NOOR 7B, 1 pc

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0,55 € with VAT
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Graphite pencil HB STABILO pencil 160 with rubber - yellow
Code:2160/05 - HB

Graphite pencil HB STABILO pencil 160 with rubber - yellow

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0,55 € with VAT
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Triangular graphite pencil no. 3/H
Code:02893

Triangular graphite pencil no. 3/H

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0,1 € with VAT
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Graphite pencil MAPED "BLACK'PEPS" HB 1pc
Code:0241

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0,23 € with VAT
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Code:029109

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0,55 € with VAT
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CRT pencil Fine art graphite 5B
Code:160 05

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1,14 € with VAT
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CRT pencil Fine art graphite 6B
Code:160 06

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1,14 € with VAT
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Graphite pencil STABILO HB - st. blue
Code:369/02 - HB

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0,75 € with VAT
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Faber-Castell Sparkle, pearl lilac pencil B
Code:118204

Faber-Castell Sparkle, pearl lilac pencil B

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1,94 € with VAT
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Pencil MILAN triangular MAXI HB
Code:0712612

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0,46 € with VAT
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STABILO EASYgraph S graphite pencil for left-handed people - blue
Code:02325

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1,25 € with VAT
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HB STABILO pencil 160 graphite pencil with eraser - pink
Code:2160/01 - HB

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0,55 € with VAT
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Pencil KOH-I-NOOR blue 1 pc
Code:0292

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0,54 € with VAT
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Colored pencil, hexagonal, for any surface, STABILO "All", black
Code:TST8046

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1,6 € with VAT
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