gray fabric 中文意思是什麼
gray fabric
解釋
本色紗-
A kind of drainage material consisting of a white polypropylene channel - shaped core surrounded by a gray long - fiber hot - bonded non - woven filter fabric, with metal conductor inside for measuring the driven depth
灰色長纖維熱粘無紡布濾膜包裹(通過粘合)白色聚丙烯槽型芯板組成的排水材料,內裝配金屬電子導線用於測量打設深度。
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