Natural labala ndi oyenera madzi, madzi a m'nyanja, mpweya, inert gasi, alkali, mchere amadzimadzi njira ndi zina TV, koma osagonjetsedwa ndi mafuta mchere ndi zosungunulira sanali polar, ntchito yaitali kutentha si upambana 90 ℃, otsika kutentha ntchito. ndi yabwino, itha kugwiritsidwa ntchito pamwamba -60 ℃. Nitrile rub...
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