фаска на торцах

Выражение встречается в следующем контексте:

фаска на торцах гидроиспытание каждой трубы на заводе изготовителе, 100% УЗК) дл.8-12 м. в т.ч.:

Заранее спасибо

bevelled ends
each pipe pressure tested
UT 100%
8-12 m long

http://www.google.ee/search?q=chamfer+pipe&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

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http://www.brettmartin.com/building/underground/technical_guide/roddingaccess.aspx
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USEFUL INSTALLATION TIPS

• Always chamfer cut pipe and lubricate all plain ended spigots for perfect joints.
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CUTTING
Pipes can be cut with a hand saw having 6-8 teeth per cm, held at a shallow angle and sawing with slow steady strokes. A file should be used to remove any swarf and a chamfer should be made around the full circumference of the pipe.

PUSH-FIT JOINTING
To ensure watertight jointing the following procedure should be followed:

• Pipe ends should be cut square. Chamfer the end to approximately half the wall thickness and at an angle of about 15° using a file or rasp. Remove all swarf with a scraper or knife blade. Chamfers are moulded on spigot ends of all fittings.
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Разница-то простая, одно дело, скосить пласть у доски/бруска.
Другое дело, снять у бруска только фаску.