Helical Broaches

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The first helical annular gear broach for automatic transmission in China was born in EST.


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The first helical annular gear broach for automatic transmission in China was born in EST.

EST won the title of the first broach in key areas in 2010.

In 2009,the first helical annular gear broach for automatic transmission of cars manufactured in China was born in EST .
This broach is approximately 135mm in diameter and 1, 930 mm in length. It takes less than one minute to broaching a workpiece, thus the production efficiency is improved dramatically.

Currently, EST also provides helical broaching services.


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