diamond-charged ring tool的意思|示意

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镶钻环工具

金刚石环形刀具 ... 金刚石环效应 diamond ring effect 金刚石环形刀具 diamond-charged ring tool 一些人想要钻石环 some people want diamond rings ...

金刚石砂轮 ... 金刚车削 diamond whel 金刚石砂轮 diamond-charged ring tool 金刚石锯片 diamond-impregnated tool ...