Gushyira mu bikorwa ibipimo, gusaba ibicuruzwa GB5310-2008 GB6479-2000 GB9948-2006 DIN17175-79 ASTM SA335 ASTM SA213 JISG3467-88 JISG3458-88 Bikwiranye na peteroli, imiti, amashanyarazi, inganda zitekesha ubushyuhe bwinshi, kurwanya ubushyuhe buke, kurwanya ruswa samless s ...
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