1, Birta iyo farsamada oxidation electroplating, design saxda ah.
2, ku hawlan afhayeenka silig copper, tayada asalka ah.
3, design qolof dhegta badhkeed, jilicsan oo raaxo leh.
4, Ciyaar/hakis, beddel heeseed, hagaajin mugga, ku habboon in la isticmaalo
5, Ku hawlan fiilada TPE, muuqaal jilicsan oo qurux badan.