I would like to know about maintenance of knowledge used excavators, where you can provide this information? -

In addition, I want to buy a bulldozer, but also want to know this information

You want to know all kinds of second-hand excavators, including the supply of information, maintenance and so on, can be accessed: http://www.used-excavator.net Do you want to buy bulldozers, went to the http://www.minibulldozer.net.