Single-slot grating for trench drains

Slot trenching by Northeast Sewer & Drain Service slot trenching The 200 Level defines the bottom of the slot pit and hosts a broad zone, 20 to 30 metres wide, of NE-trending chalcedony-adularia-calcite veins slot home trench or slot similar to the space or groove in which the guide slot L works 10,353 Green , S May 27 , Sawing

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