Asalin PCBs masu sassauƙa (FPC) Tarihin sassauƙan allo za a iya samo su tun a shekarun 1960, lokacin da NASA ta fara bincike kan jiragen sama don aika mutane zuwa duniyar wata. Domin daidaitawa da ƙaramin sarari na jirgin sama, yanayin zafi na ciki, zafi da yanayin girgiza mai ƙarfi, ...
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