本刊讯第四代新型建材专利产品———奥宇牌钢塑共挤节能保温门窗，日前在山东省高新技术企业龙口奥宇家居有限公司问世，并投入批量生产。奥宇牌钢塑共挤节能保温门窗是采用PVC结皮微发泡异型钢衬共挤成型的塑钢门窗的更新换代产品，它与传统的木制、钢制、铝制门窗相比，具有 Our fourth generation of new building materials patented product --- Aoyu brand steel co-extrusion energy-saving insulation windows and doors, a few days ago in Shandong Province high-tech enterprises Longkou Aoyu Home Co. Ltd. came out and put into mass production. Aoyu brand steel co-extrusion energy-saving insulation windows and doors is the use of PVC crust micro-foam shaped steel co-extruded steel doors and windows replacement products, it with the traditional wood, steel, aluminum doors and windows with