Iji a zuru ezu na nkà mmụta sayensị elu àgwà management mmemme, elu àgwà na elu okwukwe, anyị na-enweta oké aha na ogide a ụlọ ọrụ maka Supply China ebuli oche nkwagharị Disable ebuli maka Stair Climber oche, Ugbu a, anyị ugbu a guzosie ike kwụ ọtọ na ogologo ụlọ ọrụ mkpakọrịta na ahịa si North America, Western Europe, Africa, South America, ọzọ karịa 60 mba na mpaghara.
N'iji usoro nchịkwa nchịkwa dị elu nke sayensị zuru oke, ịdị elu dị elu na okwukwe dị elu, anyị na-enweta aha ọma ma jigide ụlọ ọrụ a.Ebuli oche nkwagharị nke China, Oche eletrik na-ebuli elu, Anyị kwenyere na ịmepụta mmekọrịta ndị ahịa dị mma na mmekọrịta dị mma maka azụmahịa. Mmekọrịta dị nso na ndị ahịa anyị enyerela anyị aka ịmepụta ụdọ ọkọnọ siri ike ma nweta uru. Ngwaahịa na ngwọta anyị enwetala anyị nnabata zuru oke yana afọ ojuju nke ndị ahịa anyị ji kpọrọ ihe n'ụwa niile.

1. valvụ na-agbawa agbawa: chebe ọkpọkọ hydraulic, mgbawa ọkpọkọ mgbochi hydraulic.

2. Spillover valve: Ọ nwere ike igbochi nrụgide dị elu mgbe igwe na-ebuli elu. Gbanwee nrụgide.

3. valvụ ọdịda mberede: ọ nwere ike gbadaa mgbe ị zutere ihe mberede ma ọ bụ gbanyụọ ọkụ.

4. Ngwa mgbochi ịdaba: gbochie ọdịda nke ikpo okwu.

5.Automatic Safety sensọ: elu ikpo okwu ga-akwụsị na-akpaghị aka mgbe na-abịa gafee mgbochi.