Izici eziyinhloko zokubheka kuma-Porcelain Insulators ephezulu: Ukuqinisekisa Ukuphepha nokuthembeka ku-Metallurgy, Izimayini, Nezimboni ZaMandla

Ikhethi lokuqukethwe: 1. Isingeniso: Ukubaluleka Kwezinga eliphakeme le-Porcelain Insulators ku-Metallurgy, Mining, kanye ne-Enery Industries 2. Ukufakwa kukagesi: I-Crition eyisisekelo yama-Porcelain Insulators 3. Amandla eMishini: Ukumelana Nezimo Eziqinile 4. Ukumelana Nezici Ezimvelo: Ukuqinisekisa Isikhathi eside 5. I-Creepage ne-Leakage ibanga: Ukuvimbela i-Flashops 6. Idizayini ne-Mand