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2. Welder certification - Wikipedia

   en.wikipedia.org/wiki/Welder_certification

   Normally this document is valid for a limited period (usually for two years), after which the welder must be retested. However some Qualifications are only valid for a single project, while others are unlimited as long as welders do not go beyond a specified length of time without performing that specific type of welding (this period is ...

3. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Duty cycle is a welding equipment specification which defines the number of minutes, within a 10-minute period, during which a given arc welder can safely be used. For example, an 80 A welder with a 60% duty cycle must be "rested" for at least 4 minutes after 6 minutes of continuous welding. [8]

4. Welding Procedure Specification - Wikipedia

   en.wikipedia.org/wiki/Welding_Procedure...

   The Canadian Welding Bureau, through CSA Standards W47.1, [3] W47.2 [4] and W186, [5] specifies both a WPS and a Welding Procedure Data Sheet (WPDS) to provide direction to the welding supervisor, welders and welding operators. The WPS provides general information on the welding process and material grouping being welded, while the WPDS ...

5. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

6. Can Creatine Make You Smarter? - AOL

   www.aol.com/creatine-smarter-140000828.html

   Dible is a 31-year-old pharmacist with an athletic build, standing 6'4" and weighing roughly 200 pounds. He’s always stayed in shape— 5Ks , 10Ks, weightlifting —but he’s never taken any ...

7. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

8. LeBron James scores season-low 10 points in Lakers' 109-80 ...

   www.aol.com/sports/lebron-james-scores-season...

   D'Angelo Russell ended up leading the Lakers with 20 points (shooting 4-of-5 on 3s) with five assists. Davis added 12 points with 11 rebounds and five assists, while Rui Hachimura matched James ...

9. Vitamin D not recommended for preventing fractures in older ...

   www.aol.com/vitamin-d-not-recommended-preventing...

   The U.S. Preventive Services Task Force released a draft recommendation advising against using vitamin D to prevent falls and fractures in people over 60. Pharmacist Katy Dubinsky weighs in.