Dab tsi yog cov txheej txheem rau kev kho cua sov ntawm cov yeeb nkab ncaj seam steel? Ua ntej ntawm tag nrho cov, layout tsim ntawm technical pwm yuav tsum tsim nyog, lub thickness yuav tsum tsis txhob sib txawv heev, thiab cov duab yuav tsum symmetrical. Rau pwm nrog loj deformation, lub de ...
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