Cov menyuam ncej puag ncig aluminium raj txoj kab uas hla 28 hli txheem siab zog aluminium lean raj anodized aluminium alloy raj rau Karakuri system.
Peb yog cov chaw tsim khoom ntawm txhuas raj.Peb cov khoom muag ncaj qha los ntawm cov chaw tsim khoom.Nrog tus nqi qis thiab kev xa khoom loj, peb yog qhov kev xaiv zoo tshaj plaws rau cov neeg muag khoom.