美国采购需求：预制房屋、集装箱房屋、集装箱房、预制房屋、模块化建筑、预制集装箱房屋

We are exploring partnerships with experienced Chinese construction firms for turnkey projects in Spain, specifically in residential and hospitality sectors. We're particularly interested in companies with established teams in Europe familiar with local construction regulations. Please share your insights on structural systems for Spain, preferred construction methods, energy efficiency standards, average costs per square meter, and project timelines. Also, let us know if you have prior projects in Europe, if you offer turnkey solutions, and if you have engineering support in Europe. Looking forward to your expertise!