轨道槽的填充一般采用沥青砂或特制的橡胶填充块。
The infill of the trench generally adopts tar sands or rubber packing blocks.
©阿赛洛国际贸易(上海)有限公司
轨道槽的填充一般采用沥青砂或特制的橡胶填充块。
The infill of the trench generally adopts tar sands or rubber packing blocks.