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Let me tell you about my office.
>> Correct

or

>>> Let me tell about my workplace.
 I am working at an auto parts company called A Corporation. 

>> Correct

or

>> I am currently working with A Corporation, an auto parts company.
 It is located in the countryside and it was established in 1991.

>> Correct
 It produces wire harness which is like a human blood vessel.

>> Correct

or

>> The company produces wire harness which is similar to a human blood vessel.
 Also the company deals with imports and exports.

>> Correct 

or

>> The company also deals with import and export.
 It has branches in a lot of countries like China, Slovakia, Russia and many more.

>> Correct 

or

>> It has branches in many countries like China, Slovakia, Russia and more.  
 I have been working here since 1995.

>> Correct
 My work is interesting and I get along well with my co-workers.

>> Correct

or

>> My work is interesting and I get along with my co-workers well.