_i1 _i2 weld R R R R R R Y G L L L _input2 _i3 _i4 weld R R R R R R Y G L L L _input2 _i5 _i6 weld R R R R R R Y G L L L _input2 _i7 _i8 weld R R R R R R Y G L L L _input2