The"signature pen"often mentioned in the signature pen is actually a functional description, and it has a wide range.

The classification is as follows:

1. A signature pen with a ball-point structure, which can be divided into water-based and oil-based based on the composition of the ink used. The ink used in the gel pen is between water and oil, and is also called "neutral pen".

2. The nib is a signature pen with a fiber structure. The nib is soft and comfortable to use, and will be more and more recognized. The structure is like a ballpoint pen, and it feels like a pen when you write.

Sign pens can also be classified into sign pens in broad and narrow sense. In a broad sense, the pens used for signing are called signature pens. For example, Parker signature pens and Montblanc signature pens are often referred to, but they are the fountain pens we have been using since we were young. From a narrow perspective, it specifically refers to the carbon ink pen or the above mentioned, while the examination uses a narrow sign pen, that is, carbon ink pen.