In 1564, in a place called Barrodale in England, people found minerals - Graphite by a black. Because the graphite can be felt like lead to leave marks on the paper, the mark than traces of lead to much more dark, therefore, people called graphite as "black". Until the end of eighteenth Century, the world has only Britain, Germany to produce this kind of graphite pencil. Therefore, Napoleon Bonaparte launched against its neighbors after the war, the British, German cut off to France pencils, therefore, Napoleon Bonaparte ordered the French chemist Conde find the Graphite Deposit in their own land, and then create a graphite pencil.
In 1761 the German F Custer established the law Nur Custer graphite pencil factory in Nuremberg City, using sulfur, antimony as binder and graphite heating hybrid manufacturing lead, so that the graphite pencil manufacturing technology a big step forward. From 1790 to 1793, the French N • J • Kant for the first time by washing graphite, graphite increased the purity, and made of graphite bonded core clay, this method is called the Kant method. In 1793 the establishment of Kant graphite pencil factory, laid the foundation for the pencil industry.
Later, the French chemist Kong De after repeated tests, using clay as a fixing agent, the core than the original but also solid wear-resisting, and this method is applicable to any graphite ore, until still in service today.
Black heart with dirty fingers, but also easy to break. In 1812, the United States of America is a man named William Monroe carpenter, engraved with grooves in bars, block a black heart, and put the pieces of the puzzle together, made the world's first pencil rod.
In 1915, Japanese early Chuan time invented a pencil again be able to launch a pencil, it is now widely used mechanical pencil prototype.
By 2003, Wenzhou Tianjiao pen industry R & D team invented the "examination special 2B lead core" won the national utility
Patent, this innovative refresh tool for writing history, marking the "pen" examination to the real birth from the proposed concept. Lead the traditional is round, to create the lead party core, the need for the technology from the equipment, technology, process and other aspects, in order to achieve this objective, the R & D team has experienced a long period of 3 years, it is each of our great pride.