90° Internal Bend Assembly – Gusset Type 90° Internal Bend Assembly - Gusset Type Nominal Section Size (mm) Model NumberSizeSize A0505IB5050 A0705IB7550 A0707IB7575 A1005IB10050 A1007IB10075 A1010IB100100 A1505IB15050 A1507IB15075 A1510IB150100 A1515IB150150 A2010IB200100 A2205IB22550 A2215IB225150 A3015IB300150