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    3. XWB-300A熱變形維卡軟化點溫度測定儀主要用于高分子材料的熱變形、維卡軟化點溫度的測定。熱變形維卡軟化點溫度測定儀適用標準:GB/T8802、GB/T1633、GB/T1634、ISO75、ISO306。
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