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Package includes: 40 pieces of 90 degree misting nozzle in blue, 40 pieces of 180 degree misting nozzle in green, 40 pieces of 360 degree misting nozzle in red, and 1 piece of drip irrigation hole punch tool in black, enough quantity to meet daily use and replacement.
Material: The misting sprayer is made of engineering-plastic, more durable and anti-aging, high pressure and high temperature resistance.
Practical design: Sprinklers can spray water in all directions without manual intervention.Nozzles are used to ensure proper spraying of the sprinkler and to prevent water backflow. The spray head with simple design ensure the nozzle is clean and easy to clean.
Easy operation: the irrigation hole punch tool can help you to quickly punch holes in the pipe, then you can directly insert the nozzle into the hole by hand, easy to operate, preventing leakage, which won't get deformed easily.
Wide applications: you can apply these spray misting nozzle to lawn irrigation, garden watering, yard irrigation, agricultural field irrigation, landscaping, outdoor cooling, swimming pool misting fog cooling and so on, just apply them in different way in different occasions.
Water pressure: 1.5-3.0kgs.Spray flow: 15-30L / Hr. Spray angle: 90 degrees, 180 degrees, 360 degrees: Spray diameter: 1-1.5 meters. Customer Service: Feel free to contact us if there are any product problems. We would try our best to provide you the best service.
is projected to reach 8 billion in 2023, 9 billion in 2037, and 10 billion people in the year 2055.
has doubled in 40 years from 1959 (3 billion) to 1999 (6 billion).
is currently (2020) growing at a rate of around 1.05 % per year, adding 81 million people per year to the total.
growth rate reached its peak in the late 1960s, when it was at 2.09%.
growth rate is currently declining and is projected to continue to decline in the coming years (reaching below 0.50% by 2050, and 0.03% in 2100) .
a tremendous change occurred with the industrial revolution: whereas it had taken all of human history up to the year 1800 for world population to reach 1 billion, the second billion was achieved in only 130 years (1930), the third billion in 30 years (1960), the fourth billion in 15 years (1974), the fifth billion in 13 years (1987), the sixth billion in 12 years (1999) and the seventh billion in 12 years (2011). During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion.
As recently as 1965, bicycle and car production volumes were essentially the same, at nearly 20 million each per year, but as of 2003 bike production had climbed to over 100 million per year compared with around 50 million cars produced that year.