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(Non-conductive) Tuubbada kaarboon-free
Si weyn loogu isticmaalo warshadaha sida kiimikaad, batroolka, biraha, cuntada, iyo daawada, oo ay ku jiraan dhuumaha qaada asiidhka, alkalis, gaaska, iyo kiimikooyinka kala duwan.
Deegaanka saaxiibtinimo leh, iska caabin heerkul sare oo heer sare ah, iska caabin daxaleed oo wanaagsan, iyo wax qabad heer sare ah oo ka hortag ah.