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力哥 发表于 2012-5-31 16:02 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
滑轮太小会伤绳子吧! 老司机 发表于 2012-6-2 01:15 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
呵呵,不知道啥价? 77169 发表于 2012-5-31 21:01 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
滑轮的直径必须是绳的16倍!!!!!!!!!!!!!! 一只小小猫 发表于 2012-6-3 18:57 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
高度不够两个车抬啊 顾志强 发表于 2012-6-4 19:30 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
回复 一只小小猫 这数据时这么来的? 崔立志4444 发表于 2012-6-7 22:40 [url=http://www.cranebbs.com/bbs/images/common/back.gif]http://www.cranebbs.com/bbs/images/common/back.gif[/url]
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