drain grating
常見例句
- The utility model is a water grating board which is convenient to drain. The utility belongs to water grating used in municipal works and sewers of streets and dwelling communities.
一種方便排水的水箅蓋，屬于市政工程、道路、生活小區(qū)內(nèi)等下水管道上 使用的水箅蓋。
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