| http://www.w3.org/ns/prov#value | - Product pipelines that carry fluids such as gasoline, distillates, diesel fuel and other finished petroleum products are a popular place for the rough and ready gate valve. ???We use slab gate valves for most of our main line valves, but we do use expanding gate valves on our product line from Texas City to Pasadena,??? says Billy Daigle, maintenance services specialist for Marathon Pipe Line LLC
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