What do you imagine makes people want to come to your country?

I think my country is rather small compared to China or Japan. --> In comparison to China or Japan, I believe my country is very small.

But, a lot of people might think they will come to Korea, Because, Korea is in a peninsular. --> However, since Korea is located on a peninsula, many people may believe they could explore here. 

They may compare Korea with Italy in this respect. --> They can make the comparison between Korea and Italy in this regard.

 => Corrected : The sentences are corrected grammatically.

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You can get free customer service for one year. --> You may receive customer service for free for an entire year.   => Your sentence has a correct grammatical structure, but this has the correct usage/ expression.

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The quality control criteria of my company is very strict.  -->  Our total quality control standards are very strict. => Your sentence has a correct grammatical structure, but this has the correct usage/ expression.

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We don’t deliver products out of the factory without thorough inspection.  --> Nothing may leave our plant before thorough testing.=> Your sentence has a correct grammatical structure, but this has the correct usage/ expression.

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