| Erichsen Hardness Testers |
 Wolff Wilborn Pencil Hardness Tester Model 291
SIS, SNV, NEN, ECA “REFERENCE CLASS”
incl. 17 standardised pencils (hardness 6B – 9H)
One of the range of Erichsen hardness testing instruments
For further information email: 50years@pearsonpanke.co.uk
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