Merge pull request #11323 from Ghommie/Ghommie-cit600

Porting a couple material datums code updates and fixes.

code/game/objects/structures/beds_chairs/chair.dm

@@ -153,7 +153,7 @@
 ///Material chair
 /obj/structure/chair/greyscale
 	icon_state = "chair_greyscale"
-	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR
+	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR | MATERIAL_AFFECT_STATISTICS
 	item_chair = /obj/item/chair/greyscale
 	buildstacktype = null //Custom mats handle this
 
@@ -383,7 +383,7 @@
 /obj/item/chair/greyscale
 	icon_state = "chair_greyscale_toppled"
 	item_state = "chair_greyscale"
-	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR
+	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR | MATERIAL_AFFECT_STATISTICS
 	origin_type = /obj/structure/chair/greyscale
 
 /obj/item/chair/stool

code/game/objects/structures/crates_lockers/crates.dm

@@ -83,9 +83,12 @@
 	desc = "It's a burial receptacle for the dearly departed."
 	icon_state = "coffin"
 	resistance_flags = FLAMMABLE
+	can_weld_shut = FALSE
+	breakout_time = 200
 	max_integrity = 70
 	material_drop = /obj/item/stack/sheet/mineral/wood
 	material_drop_amount = 5
+	var/pryLidTimer = 250
 
 /obj/structure/closet/crate/coffin/examine(mob/user)
 	. = ..()

code/game/objects/structures/table_frames.dm

@@ -41,7 +41,7 @@
 				make_new_table(material.tableVariant)
 		else
 			if(material.get_amount() < 1)
-				to_chat(user, "<span class='warning'>You need one metal sheet to do this!</span>")
+				to_chat(user, "<span class='warning'>You need one sheet to do this!</span>")
 				return
 			to_chat(user, "<span class='notice'>You start adding [material] to [src]...</span>")
 			if(do_after(user, 20, target = src) && material.use(1))

code/game/objects/structures/tables_racks.dm

@@ -211,7 +211,7 @@
 /obj/structure/table/greyscale
 	icon = 'icons/obj/smooth_structures/table_greyscale.dmi'
 	icon_state = "table"
-	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR
+	material_flags = MATERIAL_ADD_PREFIX | MATERIAL_COLOR | MATERIAL_AFFECT_STATISTICS
 	buildstack = null //No buildstack, so generate from mat datums
 
 /*