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Scaffolding Yeeb Nkab & Tube BS39 BS1139 48.3mm
BS1139 tus qauv ntawm hlau scaffolding, yog ib tug ntev-sawv, dav-siv thiab universal txheem thoob ntiaj teb.Cov khoom siv qib S235GT longitudinally welded steel yeeb nkab nrog ib txoj kab uas hla ntawm 48.3mm, thiab nws yog kub-dipped galvanized sab hauv thiab sab nrauv nto.Raws li BS EN ISO xeem txoj kev, cov tshuaj muaj pes tsawg leeg ntawm carbon (C), silicon (Si), phosphorus (P), sulfur (S), nitrogen (N) thiab lwm cov ntsiab lus raug tshuaj xyuas.Lub cev thiab txhua yam khoom ntawm cov kav hlau steel raug kuaj raws li: tensile lub zog, tawm los thiab elongation.Siv scaffold steel kav uas ua tau raws li tus qauv BS1139 yog qhov kev xaiv zoo uas tuaj yeem txo qhov tshwm sim ntawm kev sib tsoo scaffolding tshwm sim los ntawm cov khoom tsis zoo.
