corrugated steel plate Roofing material
corrugated board
corrugated iron
corrugated plate
corrugated sheet metal
corrugated sheet of material
corrugated sheetmetal
corrugated sheets
corrugated web
pleated sheet
trapezoidal sheet metal
wave plate
corrugated steel
4 号波纹钢板
屋顶材料
瓦楞板
瓦楞铁
瓦楞板
金属波纹板
瓦楞板
瓦楞金属板
瓦楞板
瓦楞网
褶皱板
梯形金属板
波形板
波纹钢
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