首页> 外国专利> self locking balls for the construction of sidewalks or the like with square footage wasn't aligned to give the impression of pavement made with blocks handmade

self locking balls for the construction of sidewalks or the like with square footage wasn't aligned to give the impression of pavement made with blocks handmade

机译:用于人行道或类似建筑的自锁球未对齐,无法给人以用手工制作的砌块铺砌路面的印象

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