Lub kaum sab xis steel, tseem hu ua lub kaum sab xis hlau lossis lub kaum sab xis steel, feem ntau ntsuas siv ob qhov tseem ceeb: qhov ntev ntawm txhua ceg thiab tuab ntawm cov khoom. Cov kev ntsuas no muab cov lus piav qhia meej ntawm qhov loj thiab cov duab ntawm lub kaum sab xis steel. Ntawm no yog li cas lub kaum sab xis steel feem ntau ntsuas:
Leg Lengths (A thiab B): Cov ceg ntev yog hais txog ob sab sib npaug-ntev ntawm lub kaum sab xis L. Cov ceg no tsim lub 90-degree kaum. Qhov ntev ntawm txhua ceg yog ntsuas los ntawm kaum sab hauv (qhov twg ob txhais ceg sib ntsib) mus rau qhov kawg ntawm ceg. Qhov ntev no feem ntau teev nyob rau hauv ib nti lossis millimeters.
Leg Length Tolerance: Ntxiv nrog rau qhov ntev ntev, koj kuj tuaj yeem ntsib qhov kev zam txim siab. Qhov no qhia txog qhov tso cai hloov pauv ntawm ceg ntev los ntawm qhov ntev uas tau teev tseg. Piv txwv li, yog tias koj pom "2" x 2 "x 1/4" nrog rau kev zam ntawm ntxiv /- 1/8," nws txhais tau hais tias ob txhais ceg tuaj yeem sib txawv ntev txog li 1/8 "los ntawm teev 2 "dimension.
Thickness (C): Lub thickness ntawm lub kaum sab xis steel yog ntsuas hla ib sab ntawm ob txhais ceg ntawm ib sab mus rau lwm qhov. Qhov tuab no feem ntau teev nyob rau hauv nti lossis millimeters.
Thickness kam rau ua: Ib yam li ceg ntev, tej zaum yuav muaj kev kam rau siab teev rau thickness. Nws qhia txog qhov tso cai hloov pauv hauv thickness los ntawm qhov teev qhov ntev.