The United States of America, referred to as the United States for short, is a federal republic constitutional country composed of Washington, D.C., 50 states, Guam and other overseas territories. With an area of 9.63 million square kilometers and a population of 320 million, the United States is a country of immigrants.North America Waterproof casing rest assured enterprises Zhongyuan valve fittings America multinational business promotion site more America regional knowledge: The United States is rich in natural resources, with the total proved reserves of mineral resources ranking first in the world. The reserves of coal, oil, natural gas, iron ore, potash, phosphate, sulfur and other minerals are among the top in the world. Other minerals in the United States include copper, lead, molybdenum, uranium, bauxite, gold, mercury, nickel, potassium carbonate, silver, tungsten, zinc, aluminum, bismuth, etc. Strategic mineral resources such as titanium, manganese, cobalt and chromium are mainly imported. The proven crude oil reserves of the United States are 20.68 billion barrels, ranking the 13th in the world, and the proven natural gas reserves are 7.716 trillion cubic meters, ranking the fifth in the world; The proven coal reserves are 491 billion tons, ranking first in the world. The forest area of the United States is about 4.4 billion mu, with a coverage rate of 33%. In 2011, the United States produced 2.065 billion barrels of crude oil, imported 4.146 billion barrels and exported 1.067 billion barrels. The United States produces 28.58 trillion cubic feet of natural gas, imports 3.46 trillion cubic feet, and exports 1.51 trillion cubic feet.Waterproof casing The manufacturer Zhongyuan valve fittings is located in Asia, bordering the Pacific Ocean, and the China-EU train runs through the country. Zhongyuan valve fittings has a service team for North America Waterproof casing customers, which can provide reliable Waterproof casing coal gas solutions for America Waterproof casing customers!
