chatsekedwa cell kutsitsi thovu
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SWD250 Utsi Wolimba Polyurethane Foam Kumanga makoma kutentha kutchinjiriza zinthu
SWD250 Spray Rigid Polyurethane Foam idapangidwa ndi SWD Urethane Co. USA mzaka za m'ma 1970.Yakhala ikugwiritsidwa ntchito kwambiri pomanga zotchingira kutentha kwa khoma ku US ndikutsimikiziridwa ngati Energy Star ndi USEPA.SWD250 polyurethane thovu ndi wandiweyani structural microporous thovu zakuthupi ndi mlingo otsika mayamwidwe, zabwino permeability kukana, pamwamba 95% ya otsekedwa selo zili.Kugwiritsidwa ntchito ndi ukadaulo wopopera mwachindunji, palibe seams pakati pa zigawo za thovu zomwe wosanjikiza wathunthu wosanjikiza umapangidwa pa gawo lapansi.Zimapanga gawo lachitetezo popewa kuyamwa kwamadzi ndikuthetsa bwino makoma akunyumba mavuto akuchucha madzi ndi nkhani zoteteza kutentha.
