Dar in tarkibi sistemahoi zamin, molni zakhira va muvozanat-i potentsialhoro istifoda shuda, baroi qabul kardan (paralel va perpendicular) simhoro (tokoutvodho) ba konkhai roofi bina va inshoat, shamil ba qopqakhoi roofi noxush, profnastil, metalcherepitsa, sandwich-panelhoro az materialhoi gurchak va nagurchak. Az polad ba peshbini ghotak zink ba GOST 9.307-89, asbobhoyi qabul kardan az poladi be zakhm.
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