An inflatable drain stopper; when inflated, it acts to seal a pipe; usually located at the lowest point of the […]

A quantity of portland cement: 94 lb in the United States, 87.5 lb in Canada, 112 lb (50.8 kg) in

The application of pressure on a material during molding so that it takes the shape of a curved, rigid die.

A filler or patching material used in masonry or wood work.

A hand plane, the mouth of which is cut obliquely from side to side, so that it can work close

A corrosion which results from substances (e.g., ammonia or sulfuric acid) produced by the activity of certain bacteria