Around 5000 BC: the use of natural gold, copper and lead, 1500 BC: the emergence of iron smelting technology, 1200 BC: the arrival of the Iron Age

Since the 14th Five-Year Plan, under the background of multiple risks and challenges emerging at home and abroad.China's steel pipe production and apparent consumption have shown a declining trend.

Stainless steel development germination stage, about from the end of the 19th century to the early 1950s more than half a century.

Steel is one of the world's most important materials for basic applications and has permeated every aspect of human life, from infrastructure and transportation to tin cans for storing food.