  3D    ESW-104:
 	 3D 
ESW-104-x		ESW-104.step
ESW-104-x-01		ESW-104_01.step
ESW-104-x-02		ESW-104_02.step
ESW-104-x-03		ESW-104_01.step
ESW-104-x-04		ESW-104.step
ESW-104-x-05		ESW-104_01.step
ESW-104-x-06		ESW-104_06.step
ESW-104-x-07		ESW-104_07.step

x -  