Dab tsi yog kev ua kev ua tau zoo ntawm Q355NHE wighching steel?
Piv nrog Q235NH hauv tib koob, A Q355NH muaj qhov sib txawv ntawm huab cua tsis kam dhau qhov sib txawv hauv lub zog?
Muab piv nrog cov carbon steel q355, dab tsi txuam alloy cov ntsiab yog Q355NH muaj ntau dua hauv nws cov tshuaj lom neeg ua kom zoo?
Thaum siv Q355Nh sab nraum zoov, ntev npaum li cas nws yuav siv sij hawm ua kom muaj qhov ruaj khov tiv thaiv kab xeb?
Dab tsi yog qhov tsawg kawg nkaus qauv rau cov paib zog ntawm Q355NH thaum lub tuab yog tsawg dua los yog sib luag rau 16 hli?
Dab tsi ua 355 thiab NH nyob rau hauv lub npe Q355Nej tsav hlau sawv cev rau lwm tus?
SS 304 Kev Kub Siab Yeeb Nkab Fittings
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316 stainless hlau nyias -} walled raj
Cov xwm txheej dab tsi tuaj yeem cuam tshuam txog cov huab cua kev tiv thaiv huab cua ua hluav taws xob?