我公司研发生产的“热管”已获得国家专利保护，专利号：ZL 2008 2 0025487.9，属国家重点推广项目。
My production "heat pipe" has been granted the national patent protection and patent number: ZL2008 2 0025487.9, which belong to national key popularized project.
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) ;
2003年成功研发出中国第一片圆弧边地板，并成功申报国家专利(专利号：ZL 200320113874.5)。
In 2003, we successfully developed China's first film side arc on the floor and declare the success of the national patent (patent Number: ZL200320113874.5).
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