Matraasi nke ezigbo mmezi usoro: ijikwa Shi zere na-eme ka matraasi karịrị deformation, adịghị ga matraasi ekwe ma ọ bụ mpịachi, adịghị ozugbo na eriri ike bundled;ekwela ka matraasi obodo site ike ibu ibu, zere ogologo oge nọdụ na matraasi onu ma ọ bụ ka nwa na matraasi Shang jumping, ka ọ ghara ime obodo site nrụgide, ada metal ike ọgwụgwụ mmetụta gbatịa;na-etinye mgbe niile matraasi tụgharịa iji, nwere ike elu na ala tụgharịa ma ọ bụ kwụsị swap, General ezinụlọ 3-6 ọnwa maka bit otu ugboro nwere ike;ma e wezụga iji mpempe akwụkwọ n'èzí, nke kachasị mma nwere ike ịtọ mkpuchi Shang matraasi, zere ụzọ akwa akwa unyi, ịsacha nke ọma, Iji mee ka akwa akwa ahụ dị ọcha, jiri wepụ akpa akpa rọba, mee ka ikuku ventilashị, gbochie matraasi si mmiri mmiri, ekwela ka akwa ahụ dị ọcha. akọrọ ruo ogologo oge, ka ọ ghara ịda mbà.
Ndị na-emepụta ihe ndina ahụike agaghị akwụsị n'okporo ụzọ iji nyochaa, iji wetara gị akwa ọrụ nlekọta ahụike ka mma, dị mfe iji, ọnụahịa ahụ dịkwa mma maka oke.