| http://www.w3.org/ns/prov#value | - The housing 200, 200A and the actuating mechanism 90, 90A can be made of any durable material, including stainless steel, and plastics and any composite material, including plastic or composite material, with or without additives such as binders, fillers, fibers, carbon and the like, etc., well known to one of ordinary skill in the art.
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