Saib ntawm cov khoom siv:Rau huab hwm coj ntau lawm, xaiv Q235 lossis siab dua cov khoom siv me me pwm (xaiv} {{2} {{2} {{2} {2} {{2} {{2} {{2} {
Saib ntawm tus qauv:Ua kom ntseeg tau qhov tseeb ntawm qhov tseeb (ua yuam kev tsawg dua lossis sib npaug ntawm 3mm), nrog txoj kab nqes ua ke, thiab cov qauv ua haujlwm yooj yim).
Saib ntawm tus txheej txheem:Sab hauv phab ntsa yog tus thiab flawless, cov welds (steel m) yog tiaj tus kheej yog qhov sib xyaw, thiab sib txuas nrog 0.5 hli.
Saib ntawm cov chaw tsim khoom:Xaiv cov chaw tsim khoom lag luam nrog cov kev tsim nyog thiab cov xwm txheej hauv nroog, paub meej tias qhov kev ua tau zoo thiab tom qab muag khoom (kho tej yam khoom siv).
Match xav tau:Ua ke ntawm cov khoom lag luam ntau lawm, dej nag ua haujlwm zoo (tsis tu ncua), thiab siv nyiaj siv, zam kev nqis peev ntau dhau los lossis tsis txaus.