Aluminum case, rack case ,speaker case , audio case , light case, tool case , equipment case good quailty with reasonable price 1.Aluminum case, rack case ,speaker case , audio case , light case, tool case , equipment case , mixed case , trolley case , moving head light case and so on2.9mm and 10mm plywood ,The side from 2u to 24u , it is very solid and can protect your valuable article safely3. ...