| http://www.w3.org/ns/prov#value | - The raw material needed for their manufacture is a special alloy in an uncommon size that is difficult to obtain, and there are only a couple of companies in business that have the equipment required to bend 2-3/4 inch diameter high-strength stainless steel into the shape required.???Warden Fluid Dynamics rebuilt the hydraulics of the gate???s gear drive system.Workers tow this 312-ton sluice main
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