For high - speed rail track
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羊稠坑 Yangchoukeng, Luzhu Dist. - For high - speed rail track by Wu,Tsan-Cheng (27.07.2017 07:54) [aporee.org/CC-BY]
羊稠坑 Yangchoukeng, Luzhu Dist. - For high - speed rail track by Wu,Tsan-Cheng (27.07.2017 07:54) [aporee.org/CC-BY]