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Special tapered shape, makes sure that fillings can open easily or properly shrink to suiting different caliber.
独有的外动凹槽形状，确保充填物容易打开或适当缩小以适应不同口径的缺损。
youdao
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Special tapered shape, makes sure that fillings can open easily or properly shrink to suiting different caliber.
独有的外动凹槽形状，确保充填物容易打开或适当缩小以适应不同口径的缺损。
youdao