Converts /modules/ to using WEIGHT_CLASS_x

code/modules/recycling/conveyor2.dm

@@ -334,7 +334,7 @@
 	icon_state = "conveyor0"
 	name = "conveyor belt assembly"
 	desc = "A conveyor belt assembly."
-	w_class = 4
+	w_class = WEIGHT_CLASS_BULKY
 	var/id = "" //inherited by the belt
 
 /obj/item/conveyor_construct/attackby(obj/item/I, mob/user, params)
@@ -361,7 +361,7 @@
 	desc = "A conveyor control switch assembly."
 	icon = 'icons/obj/recycling.dmi'
 	icon_state = "switch-off"
-	w_class = 4
+	w_class = WEIGHT_CLASS_BULKY
 	var/id = "" //inherited by the switch
 
 /obj/item/conveyor_switch_construct/New()

code/modules/recycling/sortingmachinery.dm

@@ -216,7 +216,7 @@
 	//The whole system for the sorttype var is determined based on the order of this list,
 	//disposals must always be 1, since anything that's untagged will automatically go to disposals, or sorttype = 1 --Superxpdude
 
-	w_class = 1
+	w_class = WEIGHT_CLASS_TINY
 	item_state = "electronic"
 	flags = CONDUCT
 	slot_flags = SLOT_BELT
@@ -430,4 +430,4 @@
 
 /obj/item/shippingPackage/Destroy()
 	QDEL_NULL(wrapped)
-	return ..()
+	return ..()