Question:
রেলওয়েতে সাধারণত কোনটিকে আদর্শ Sleeper ধরা হয়?
Steel Sleeper | |
Wooden Sleeper | |
Wooden Sleeper | |
Concrete Sleeper | |
Cast Iron Sleeper |
Answer:
Wooden Sleeper
Last Updated:
08/11/2021 - 09:25
Steel Sleeper | |
Wooden Sleeper | |
Wooden Sleeper | |
Concrete Sleeper | |
Cast Iron Sleeper |