grafitové ceruzky špeciálne

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
Leads Hardness
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Producer
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Code:UKL321

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Code:TST8046

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1,6 € with VAT
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Code:TS12520

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1,1 € with VAT
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Code:326/03-HB

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1,25 € with VAT
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Code:0294

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0,7 € with VAT
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Code:322/04-HB

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1,7 € with VAT
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Code:326/01-HB

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1,25 € with VAT
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Code:32218HB

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1,56 € with VAT
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KOH-I-NOOR graphite pencil in varnish 4B, black 1 pc
Code:029107

KOH-I-NOOR graphite pencil in varnish 4B, black 1 pc

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1,46 € with VAT
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STABILO EASYgraph S graphite pencil for left-handed people - blue
Code:02325

STABILO EASYgraph S graphite pencil for left-handed people - blue

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1,25 € with VAT
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STABILO EASY graphite pencil for right-handed people - pink 2 pcs in a blister
Code:50648

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3,52 € with VAT
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KOH-I-NOOR brown contouring pencil, 1 pc
Code:0295

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0,7 € with VAT
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Graphite pencil MAPED "BLACK'PEPS" HB with eraser 1pc
Code:9854021

Graphite pencil MAPED "BLACK'PEPS" HB with eraser 1pc

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0,58 € with VAT
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STABILO EASYgraph S graphite pencil for right-handed people - light blue
Code:326/02-HB

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1,25 € with VAT
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Colored pencil, hexagonal, for all surfaces, STABILO "All", brown
Code:TST8045

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1,6 € with VAT
Out of stock
STABILO EASYgraph graphite pencil for left-handed people, pastel pink
Code:02323

STABILO EASYgraph graphite pencil for left-handed people, pastel pink

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1,65 € with VAT
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Code:62100020

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0,79 € with VAT
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Code:07323812

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0,31 € with VAT
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Code:6314

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2,11 € with VAT
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Code:70446

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Code:B-59063-10

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Code:090522

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STABILO EASYgraph graphite pencil for right-handed people, pastel green
Code:02327

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Code:02320

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1,65 € with VAT
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STABILO EASYgraph graphite pencil for right-handed people, pastel purple
Code:02329

STABILO EASYgraph graphite pencil for right-handed people, pastel purple

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1,65 € with VAT
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