Wet mill end cover is installed on the exhaust valve.
湿磨机端盖上安装放气阀。
Using a ball end mill to form part of the combustion chamber.
用球头铣刀的组成部分燃烧室。
The cylindrical end mill with ball-nose is one kind of highly efficient cutting tool.
圆柱形球头立铣刀是一种高效刀具。
The cylindrical end mill with ball-nose is one kind of highly efficient cutting tool.
圆柱形球头立铣刀是一种高效刀具。
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