What's this?
lift
What main parts does it have?
stable truck, extendable boom and counterweight.
What can the telescopic crane do?
It can lift heavy things.
What's this?
block
What's this?
counterweight
What's this?
plate
What do people use it for?
People use it to build high buildings like towers, houses and school.
What's this?
rack
What's this?
gear
What's this?
telescopic crane