If the carbon content of a type of steel is 0.1%， this steel is a kind of （ ）. A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel
If the carbon content of a type of steel is 0.1%， this steel is a kind of （ ）. A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel
If the carbon content of a type of steel is 0.1%, this steel is a kind of (). A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel E: 2-1-1 F: 章测
If the carbon content of a type of steel is 0.1%, this steel is a kind of (). A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel E: 2-1-1 F: 章测
Steel structure is the engineering structures made of shaped steel and steel plate.
Steel structure is the engineering structures made of shaped steel and steel plate.
Competely annealing is mainly used for ( ). A: hypoeutectoid steel B: eutectoid steel C: hypereutectoid steel D: all steel
Competely annealing is mainly used for ( ). A: hypoeutectoid steel B: eutectoid steel C: hypereutectoid steel D: all steel
______is the engineering structures made of shaped steel and steel plate.
______is the engineering structures made of shaped steel and steel plate.
Which is more brittle, glass or steel? A: glass B: steel
Which is more brittle, glass or steel? A: glass B: steel
When the steel
When the steel
steel structure
steel structure
The largest producer of steel in the United States in the early years of the 20th century was ______. A: Ford Corporation B: the Steel Mill C: the United States Steel Corporation D: the West Union Corporation
The largest producer of steel in the United States in the early years of the 20th century was ______. A: Ford Corporation B: the Steel Mill C: the United States Steel Corporation D: the West Union Corporation
The classification and grade of steel are（）
The classification and grade of steel are（）