Who knows the history of Caterpillar excavators?

Baidu encyclopedia! ! I came out as soon as I searched the caterpillar. But what comes out is the development information of Caterpillar.

If you want to know about Caterpillar excavators, there is an article on China Excavator's blog. This website is dedicated to Caterpillar excavators.

You go and find it. "China Excavator Network Sina", you can come out.