newmtl __TB_empty
map_Kd textures/__TB_empty.png

newmtl concrete_15
map_Kd textures/concrete_15.jpg

newmtl dark
map_Kd textures/dark.png

newmtl shipping_container_01_front
map_Kd textures/shipping_container_01_front.jpg

newmtl shipping_container_01_side
map_Kd textures/shipping_container_01_side.jpg