limilong007 发表于 2010-10-19 08:36

SAE J1238-1998 Rating Lift Cranes

SAE J1238-1998 Rating Lift Cranes on Fixed Platforms Operating in the Ocean Environment

kaitao 发表于 2010-10-19 10:33

啥东东，看一下

北起12 发表于 2010-10-19 12:00

英文版的啊 ！恐怕很少人能看的懂

zwqiang1984 发表于 2011-2-24 21:03

看看
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