Hãng sản xuất: Sheen – Anh
Model: 720N
Code: SH720N Pencil Hardness Tester (Wolff Wilborn)
Product information:
Pencil Tester Block dimensions: 105 x 50 x 50mm
Applied load 750 grams
Set of 20 pencils (9B to 9H)
Standards:
ASTM: D 3363-05
ECCA: T4
BS EN: 13523-4
ISO: 15184
JIS: K5600-5-4
Product includes:
Pencil Hardness Tester
Block set of 20 pencils (9B to 9H)
Pencil sharpener
Abrasive paper (400 grit)
Operating manual
Carrying case