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14378| 37
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双缸250镗缸改270 |
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点评
保护层??这不是激光也不是瓷化缸 有什么保护层?
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点评
以前没有人家都是用GY6的改到57.4那才牛逼不过缸壁薄了,现在用这种是57的尺寸完全合适改
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