2015年8月18日星期二

Historical bulldozer

Mentioned roller had compacted the development of technology to make a brief introduction, as early as in ancient times people had used a herd of hooves trampling feet of soil, kneading and tamping handle house foundation, compacted dam and embankments, in the mid-19th century,Mechanical Bulldozer Supplier the western road projects to pave the way for the main gravel compaction vehicle mainly by natural rolling until after the 1858 invention of the Rolling Stone, and promote the development of gravel road, only the gradual emergence of compaction work with the horse-drawn roller.

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