漂亮人妻熟睡中被公侵犯

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    Cold Drawing Machine Chain

    Compared with leaf chain, Cold drawing machine chain has larger pitch and can bear larger load. Its link joins are mainly dispersed over both sides of the chain, and there is axis pin in the middle for meshing with chain wheel, so its transmission is in the same way as roller chain in rotary motion.
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    漂亮人妻熟睡中被公侵犯
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