×
凹弧面型
meaning in English
hollow cabochon
Related Words
面型检光组件
凹
椭圆凹
地槽凹
凹痕打凹
窝凹
成凹
球凹
凹坡
凹损
凹痕压痕
凹痕硬度试验
凹弧饰
凹弧饰线脚
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