|Black HB 2B 2H
|Office & School Pencil
|We could do laser engraving or screen printing logo on the pen
|Welcome Customized Round Hexagon Triangle Square
|PDF, AI, EPS, or CDR file needed to be provided by clients
|5~15days depend on order quantity
|Sample can send via DHL Fedex UPS TNT 7days
|By Sea/Air or Express like DHL/FEDEX/EMS/UPS/TNT.etc
|Sketch Pencil Set Pen Curtain Sketch Tool 18 Pencils Gift purpose
Business gifts, advertising gifts, promotional gifts
1.Is the pencil lead poisonous?
In fact, pencil leads are not poisonous, lead is poisonous, and the main raw materials for making pencil leads are graphite and clay, so pencil leads are non-toxic.
The main components of the pencil refill are graphite and clay. Graphite is a scaly solid with metallic luster. Among them, there are carbon-carbon chemical bonds. The layers are Van der Waals forces. The carbon-carbon chemical bonds are very stable. It’s very difficult. This is why diamond and graphite are both made of carbon, but the physical properties and prices are very different. There is nothing in the human body that can break the carbon-carbon chemical bond, so it’s safe to say that the pencil lead is safe (unless The clay added inside is harmful to human health).
2.Is the pencil shaft metal poisonous?
The appearance of the pencil shaft has a wrapper mold or the use of pencil paint technology, which can protect the pen shaft on the one hand, and increase the beauty on the other hand. However, the pigments will contain traces of heavy metals. Proper.