BLACK WOOD HB
HOLE HOLE PEN
WITH A PEN
ROUND ROD PENCIL
FOR STATIONERY, WE HAVE BEEN WORKING HARD
The marker of a pencil holder
The hardness mark of lead pencil is usually "H" for hard pencil, "B" for soft pencil, "HB" for moderate hardness pencil, "F" for hardness between HB and H pencil.
The Origin of the Pencil
In 1662, the first pencil factory in the world was established in Nuremberg, Germany.
Are some substances in pencils harmful?
1. Is the pencil lead poisonous?It's not actually toxic, lead is toxic, and graphite and clay are the main materials used to make pencil leads, so they're not toxic.The bases of the pencil lead is ...
Process decomposition steps for pencils
Divided into pencil cap and pencil rod two parts: pencil cap appearance decoration material is mainly polyester material, production process can be divided into molding, offset printing, assembly a...
Qingyuan Weixin Stationery Co., Ltd. participated in the 17th China International Stationery and Gif
Qingyuan Weixin Stationery Co., Ltd. will participate in the 17th China International Stationery and Gift Expo!Address: Ningbo International Convention and Exhibition CenterDate: July 16-18, 2020Bo...
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