The company is mainly engaged in the R&D, production and production of air ducts, and constantly increases technical investment. It has reformed and innovated the connection form and construction
检测报告
双面彩钢复合风管板材（离心玻璃棉夹芯)
双面彩钢玻纤复合风管板材
双面彩钢玻纤复合风管
耐火复合风管 71
耐火复合风管 70
