Pom material of the key cap relative to abs less, so the original keyboard is rare. is a durable and simple material. Whether it is durable or rugged POM is better than ABS, Polish ability is also multiplied, at least two or three years will not appear Polish problem (Polish appear varies from person to person). The handle is between PBT and ABS. The bonding cap for this material is the softest, not very hard, mild, and has a certain ability to resist Poland, but not as Pom and PBT. Nylon is widely used in automobile, electrical equipment, mechanical structure, transportation equipment, textile, papermaking machinery and so on. The most common is stockings, whether it is slim beauty or a sturdy robber are used.