1. Ukwakhiwa kweekhemikhali yi-silica engasebenziyo, kwaye akukho nkxalabo malunga nokuphazamiseka komsebenzi weekhemikhali;
2. Amasuntswana elastiki ajikelezayo. I-Impact resistant, inokusetyenziswa ngokuphindaphindiweyo
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7. I-workpiece ecutshungulwayo inefuthe le-matt, igxininisa umbala wensimbi, ayinakugqwala, njl., kwaye ayifuni ukuba ifakwe kwaye ifakwe.
