In 2013, Wei bought his first mechanical keyboard, and since then he has been involved with mechanical keyboards and entered the world of mechanical keyboards. In 2016, he created the KBDfans brand. From its original one-person operation to its current 40-person team, KBDfans has gradually developed and grown.

PBTfans is a brand-new Keycaps manufacturer created by KBDfans, featuring well-designed molds and bold, sharp, consistent legends. The Doubleshot plastic injection molding used by PBTfans supports PBT (mainly PBT raw materials, not pure 100% PBT) or ABS materials, while sub-legends are created using tripleshot injection molding technology, which can display 3 colors on Keycaps.