Q. Oxygen cylinders are (Solved)
1. Cast iron cylinders
2. Seamless steel cylinders
3. Die cast
4. Steel cylinders, welded structure
5. Alloy steel cylinders, thermit welded
- b. Seamless steel cylinders
1. Cast iron cylinders
2. Seamless steel cylinders
3. Die cast
4. Steel cylinders, welded structure
5. Alloy steel cylinders, thermit welded