Mission clean air — ventilation and extraction systems with AL-KO Therm

Aluminium Praxis 10.2016

It all began in 2009 with a sim­ple ques­tion: How can holes be made with high pre­ci­sion in dou­ble-walled V2A or sheet steel pan­els in an eco­nom­i­cal­ly sen­si­ble way?