“Enclosed is the shipment of #2 toggle bolts as per your order of June 14” writes the businessman, unaware that not only is the “as” redundant, he is sounding very old-fashioned and pretentious. The meaning is “in accordance with,” or “in response to the request made”; but it is better to avoid these cumbersome substitutes altogether: “Enclosed is the shipment of bolts you ordered June 14.”
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