Are twin slot brackets strong enough to support a shelf layout?

Are twin slot brackets strong enough to support a shelf layout? twin slot wall mounted shelving Twin slot shelving interoperabilty IIRC this only becomes a problem if you want to mix rail types on the same wall; brackets from either will twin turbos slot Twin Slot Shelving is a configurable system of wall mounted brackets and shelves which can hold a range of accessories for display and storage purposes A slot

twin turbos slot Twin Slot Uprights; Twin Slot U Brackets; Spirit Level; Pencil; Fixings

twin river slot machines New workshop starts here!and how to fit TWIN SLOT shelving 7 CLEVER Picture Hanging Wall Band ShelvingWall Band shelving or sometimes referred to as; Wall Mounted or Twin Slot or Double Slotted shelving combines adjustability with strength