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E & M Installation and Metal Structure Manufacturing and Installation
1. The First Grade of General Contracting in Hoisting Equipment Installation Engineering
2. The First Grade of Contracting in Metal Structure Fabrication and Installation
3. The First Grade of Steel Structure Engineering Contracting
4. Ship Fabrication and Maintenance Class I

 
添加时间：2005年2月5日   发布人：zyl   来源：   点击数：3145  
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