1. Nrụgide siri ike, nkwụsị oxidation, pinhole nke ọla edo, obere nguzogide.
2. Rubber isi na-eguzogide ọgwụ dị elu na ọkụ ọkụ.
3. Mara mma ma na-adịgide adịgide.
- Akụrụngwa nwere ọgụgụ isi: sensọ, ngwaọrụ ejiri aka, drones, akụrụngwa ụgbọ ala, wdg
- Ngwaahịa smart wearable: smart smart, mgbaaka smart, smart glass, headset Bluetooth, smart gloves, VR, wdg.
-3C ngwaahịa ngwaahịa: mbadamba mbadamba, eletrọnịkị mkpọchi, ụgbọ ala eletrik, iko mmiri smart.Ịchaji eriri data, wdg.