Dual Mast aluminom nke nwoke buliri bu nke di elu nke elu-elu-elu di iche-iche nke na-arụ ọrụ nke a aluminum alloy. E jiri ya tụnyere otu nwoke nke Mast na-ebuli, ịdị elu nke abụọ mast kọmpat kọmpat nwoke nwere ike iru elu dị elu. Nhazi nke dominium nke abụọ mast nke mass abụọ, nke kachasị sie ike ma dịkwa mma iji. Fọdụ ndị ahịa nwere ike iche na ha buru ibu nke abụọ mast compact kọmpat nwoke ga-abụ nnukwu nnukwu ma nyiwe na nke ukwu ga-enwe nsogbu. Nke a abụghị nsogbu ichegbu onwe gị banyere ya, n'ihi na iyunim aluminom kọmpat nwoke buliri elu na ubube ọkachamara iji nyere ndị ọrụ aka ịbanye n'elu ikpo okwu. Ladder ahụ na-agbanahụ ma ọ bụrụ na a ga-asị na ha anaghị eji ya eme ihe, nke mere na ọ naghị ewepụta ohere nchekwa. Ọ bụrụ na ịchọrọ ịkpụkọ mkpụrụ osisi abụọ ma nwekwaa iji nyere gị aka mezuo ụlọ ọrụ dị elu, biko nweere onwe gị ịkpọtụrụ m iji nye gị enyemaka bara uru.