The door, it is the first impression of home from home, visitors never enter the house to see their door. The door is not only a partition of space, but also shows the taste and pursuit of homeowners. So how can we do a good job to save money and save money?

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(1) Submersible pumps should be installed in sturdy baskets and then placed in water, and a solid protective fence can also be set up in the water around the pump. Pump should be erected in water, the depth of not less than 0.5m, shall not be used in silt containing water. (2) submersible pump …

The most common mechanical oil extraction method in the world is screw pump, and its most common operation problem is that the pump can not be fully filled, resulting in low productivity and incomplete pump. The pump is a three-screw pump, a screw pump, a 3G screw pump, High temperature screw p…

1, the daily cleaning of tiles can be washed with detergent, soap and so on.

2, add a little ammonia and turpentine mixture with soap, clean the tiles to make the tiles more shiny.

3, poli…

[Alcoa.com] Although plastic can replace metal in many applications, it is obviously lacking in the texture of metal. For this reason, certain methods need to be applied to coat the plastic surface with a layer of metal (aluminum, zinc, copper, silver, gold, etc.). One method is to use elec…