Mimet Oy Mimet Oy is a custom machine shop founded in 1988 in Kangasniemi and Lempäälä. We manufacture welded structures from several different steel grades. Our activities include e.g. Design and manufacture of CE pressure equipment. Equipment for the needs of the process industry, for example, is also well suited for our production. We have a valid manufacturing license for pressure equipment delivered to China. Our customer base consists mostly of export companies.