GDB: 5 Nm, for dampers up to 0,8 m2
GLB: 10 Nm, for dampers up to 1,5 m2
GEB: 20 Nm, for dampers up to 4 m2
GBB: 25 Nm, for dampers up to 5 m2
GMA: 7 Nm, for dampers up to 1,5 m2
GCA: 18 Nm, for dampers up to 3 m2