| http://www.w3.org/ns/prov#value | - The connector 13 is generally made from a synthetic resin that includes polypropylene, ABS (acrylonitrile-butadiene-styrene) resins, polyvinyl chloride, polyethylene, polyethylene terephthalate and the like, or even from a metal such as stainless steel, brass or the like.
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