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Kaadị kaadị Aluminom maka kaadị azụmaahịa PSA BGS SGC
Igbe nchekwa kaadị egwuregwu aluminom anyị bụ ebe nchekwa kaadị kacha mma.Ọ nwere ike dabara kaadị BGS SGC HGA GMA CSG PSA nwere akara.Enwere ike iji igbe slab a maka kaadị ndị nwere akara dị ka nchekwa toploader kaadị.
Anyị bụ ụlọ ọrụ mmepụta ihe nke nwere ahụmahụ afọ 15, ọkachamara na mmepụta nke ngwaahịa ahaziri iche dị ka akpa etemeete, ihe ịchọ mma, ikpe aluminom, ikpe ụgbọ elu, wdg.
