+ Threat defense system by 2 plastic pipeline laid in parallel (21 pioneers plastic pipes) are connected together to form a closed system, then attach the nail legs close around the front and side of the gate down to the basement of the building. + Plastic are small holes drilling distance of 5-10 cm/hole, the purpose of giving the drug infuse out from the hole.+ About the way the drug pump location from 10-15 m/location + Plastic tube mounted police Foundation foot the building beneath the summer card tiles.+ Around the tube will be inserted a layer of sand or plastic pipes are wrapped in a layer of cotton (not for the purpose of the holes in the plastic tube jackfruit land) + 12 month recurring relationship room spray 1.
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