tourist visa:- issued from agency using some hotel names for tourist purpose and can not be renew or extend.

visat visa:- approval issued from labour office but there are two type.
1. business visit visa can issued only on company name(approval issued from labour office for one month but can be extend for another two months.

2. family visit visa is issued only if there is relationship or family members (approcal issued from labour office for one month also but can be extend for another 5 months)

i think above details will match with ur question.