D1=12.0mm / D2=8.0mm / L1=50.0mm / L2=6.0mm / alfa=90.0°
D1=14.0mm / D2=8.0mm / L1=50.0mm / L2=7.0mm / alfa=90.0°
D1=6,0mm / D2=6,0mm / L1=50,0mm / L2=1,2mm / alfa=160,0°
D1=3,0mm / D2=8,0mm / D3=11,0mm / L1=50,0mm / L2=6,0mm / alfa=90,0°