首页>
外国专利>
1. A general manufacturing and building system for hydraulic, hard wall and hollow buildings, i.e. Dongfeng ordinary solid tubular structure and natural artificial stone system, is called the dernanfer system.
1. A general manufacturing and building system for hydraulic, hard wall and hollow buildings, i.e. Dongfeng ordinary solid tubular structure and natural artificial stone system, is called the dernanfer system.
