impregnated concrete pipe的意思
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浸渍混凝土管
impregnated concrete pipe的网络释义
浸渍混凝土管 ... 浸渍混凝土 impregnated concrete 浸渍混凝土管 impregnated concrete pipe 经修饰和调合的串珠饰或圆线条 dressed and matched bead ...