skin replacement liaoning rongda new materials technology co., ltd. is a private high-tech enterprise, and the company covers 1 new material preparation and application research and development, integrated environmental noise management, modular integrated housing and other fields. the company produces and sells porous metals, including sound barriers, sound-absorbing boards, sound insulation boards, foam aluminum, open-cell foam aluminum plates, closed-cell foam aluminum plates, square cabins, modular houses, industrial residential and other products. 50 strip