Ua ntej yuav khoom loj-ntev ncaj seam steel kav (LSAW), koj yuav tsum ua raws li cov qauv tsim ua ntej, qhov ntev, cov ntaub ntawv, phab ntsa thicknesses, vuam cov qauv thiab cov khoom siv vuam, uas yuav tsum tau sib txuas lus zoo ua ntej kev yuav khoom. 1. Thawj yog qhov specification. Piv txwv li, 8 ...
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