Mimet Oy Mimet Oy is a custom machine shop founded in 1988, with offices 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 is also well suited to our production, for example for the needs of the process industry. We have a valid manufacturing license for pressure equipment delivered to China. Our customer base consists mostly of export companies.