scavenge materials meaning in Chinese

废物提取原料

Presently it has many kinds of new advanced equipment assembly lines , can manufacture steel structure roofing , wall - facing extruded steel plate material , scavenging material , indoor - outdoor fireproofing , soundproof and sound - absorbing product
现具备多品种新型先进设备流水线，可适应钢结构屋面、墙面体压型钢板材料及净化、室内外防火、隔音、吸音产品的生产。