The "Zhongli" brand electric control quick gear satellite drive construction hoisting machinery has won the state patent( the patent no. : 99 3 36200.1) ;
我公司开发研制的“重力”牌电控快速少齿差行星传动建筑卷扬机获得国家专利（专利号：99 3 36200.1）；
The "Zhongli" brand electric control quick gear satellite drive construction hoisting machinery has won the state patent( the patent no. : 99 3 36200.1) ;
我公司开发研制的“重力”牌电控快速少齿差行星传动建筑卷扬机获得国家专利（专利号：99 3 36200.1）；
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