资讯

CBC.ca8 年
What's that train carrying? Safety placards offer a clue
The placard number 1075 indicates the car is carrying any of a number of flammable substances including butane, propane and liquefied petroleum gas (LPG). But the stencil on the car body makes it ...
CBC.ca8 年
What's that train carrying? Safety placards offer a clue
The placard number 1075 indicates the car is carrying any of a number of flammable substances including butane, propane and liquefied petroleum gas (LPG).