minetest.register_alias("mystreets:sidewalk", 				"myconcrete:sidewalk")
minetest.register_alias("mystreets:concrete", 				"myconcrete:concrete")
minetest.register_alias("mystreets:fence_concrete", 			"myconcrete:fence_concrete")
minetest.register_alias("mystreets:precast_concrete_seperating_wall", 	"myconcrete:precast_concrete_seperating_wall")
minetest.register_alias("mystreets:precast_concrete_cylinder", 		"myconcrete:precast_concrete_cylinder")
minetest.register_alias("mystreets:ramp_sidewalk", 			"myconcrete:ramp_sidewalk")
minetest.register_alias("mystreets:ramp_sidewalk_long", 		"myconcrete:ramp_sidewalk_long")
minetest.register_alias("mystreets:ramp_concrete", 			"myconcrete:ramp_concrete")
minetest.register_alias("mystreets:ramp_concrete_long", 		"myconcrete:ramp_concrete_long")
minetest.register_alias("mystreets:manhole", 				"myconcrete:manhole")
minetest.register_alias("mystreets:manhole_open", 			"myconcrete:manhole_open")
minetest.register_alias("mystreets:manhole_shaft", 			"myconcrete:manhole_shaft")