Steel grating, tseem hu ua steel grating, yog ib yam ntawm cov khoom steel nrog ib tug square lattice nyob rau hauv nruab nrab, uas yog ua los ntawm ca steel ntoo khaub lig-txheej raws li ib tug tej qhov sib nrug thiab ntoo khaub lig tuav, thiab yog tsuas yog siv raws li ib tug gutter cover.Steel qauv platform phaj, kauj ruam phaj ntawm steel ntaiv, e ...
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