Moderner manual Pencil Hardness Tester instrument mall authorized by the manufacturer

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750g6B-6H

750G load; standard with 13 Chinese brand pencils; in line with GB/T6739 standard.

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6B-6H500g

Load 500g, applicable to standard GB/T 6739-2006, standard 13 hardness pencils.

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1000g6B-6H（13支）

Load 1000g, applicable to standard GB/T 6739-1996, standard pencil 6B-6H (13 pcs).

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