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2. String trimmer - Wikipedia

   en.wikipedia.org/wiki/String_trimmer

   A string trimmer, also known by the portmanteau strimmer and the trademarks Weedwacker, Weed Eater and Whipper Snipper, [1] [a] is a garden power tool for cutting grass, small weeds, and groundcover. It uses a whirling monofilament line instead of a blade, which protrudes from a rotating spindle at the end of a long shaft topped by a gasoline ...

3. Weed Eater - Wikipedia

   en.wikipedia.org/wiki/Weed_Eater

   Weed Eater is a string trimmer company founded in 1971 in Houston, Texas by George C. Ballas, Sr., the inventor of the device. The idea for the Weed Eater trimmer came to him from the spinning nylon bristles of an automatic car wash. He thought that he could come up with a similar technique to protect the bark on trees that he was trimming around.

4. Husqvarna TR650 - Wikipedia

   en.wikipedia.org/wiki/Husqvarna_TR650

   The Husqvarna TR650 is a dual sport motorcycle made by Husqvarna Motorcycles, a wholly owned subsidiary of Pierer Industrie AG, [2] which designs, engineers, manufactures and distributes motocross, enduro and supermoto motorcycles. The company began producing motorcycles in 1903 at Huskvarna, Sweden, as a subsidiary of the Husqvarna armament ...

5. Wellhead - Wikipedia

   en.wikipedia.org/wiki/Wellhead

   API 6A, 20th Edition, October 2010; Specification for Wellhead and Christmas Tree Equipment; ISO 10423:2009 Wellhead and Christmas Tree Equipment; In general well heads are five nominal ratings of wellheads: 2, 3, 5, 10 and 15 (×1000) psi working pressure. They have an operating temperature range of −50 to +250 degrees Fahrenheit. They are ...

6. Casing (borehole) - Wikipedia

   en.wikipedia.org/wiki/Casing_(borehole)

   Casing Diameters of a Borehole Casing Diagram premium gas tight connections on a casing string. Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream.

7. Wellhead protection program - Wikipedia

   en.wikipedia.org/wiki/Wellhead_protection_program

   These Wellhead Protection Programs must specify the duties of State agencies, local governmental entities, and public water supply systems to develop and implement wellhead protections. Identification of the area that needs wellhead protection must be based on the hydrologic and geologic information on groundwater flow, recharge, and discharge.