Gate Valves are called "full-flow" valves; there's a direct unobstructed path for flow right through the middle of the valve. A wedge-shaped brass gate is lowered into a machined slot to close the valve. They should either be completely open or completely closed. Water flowing through a partially open gate valve wears away the metal and causes the valve to fail over time. Brass Gate Valve, Flanged Gate Valve, High Pressure Gate Valves, Water Gate Valves ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalves.com
On the 14th, local time, one of the worst church shootings ever occurred in a primary school in Connecticut, United States. It was confirmed that the shooting suspect was a man named Adam Lanza, which caused 28 deaths, including 20 Children 6 and 7 years old.
After the case took place, public opinion was uproared. Many UN leaders, Ban Ki-Moon, European Commissioner Catherine Ashton, Canadian Prime Minister Harper, French President Hollande, Queen Elizabeth II, and Australian Prime Minister Girard took part in the shootings. The case was shocked and expressed condolences to the victims.
On December 15th, local time, the people were allowed to mourn in front of Sandy Hook Elementary School, the scene of the shooting incident in the Connecticut campus of the United States, which was heavily blocked by the police. At this point, all the names of the victims have been confirmed, making it most traumatic. There is no doubt that 20 of them are under 7 years old. However, the deceased had fallen into tears, hoping that the little angels would continue to smile and joy with the flowers and toys they had given them, and continue their unfinished life in another world.
In the midst of mourning and grief, should the United States reflect on the issue of controlling firearms? The United States has repeatedly shot dead. I hope such extreme freedom will override the social responsibility. The situation can change in times of tragedy. .