Webiste:https://www.dlp-oileqpt.com/
Email:sales@dlpoctg.com
About us
With API 5CT oil casing and API 5L oil line pipe as the main products,with production and sales integration, professional domestic and foreign trade operations, strength financial , rich experience.
Products: Oil Casing, Tubing, Line Pipe, Seamless Steel Pipe, Steel Pipe(ASTM/API/ASME/DN/BS/JIS/EN),Alloy Seamless Steel Pipe.
Performing Standard:API-5CT API-5L ASTM- A106-Gr.B ASTM- A53 DIN BS JIS EN.
Size of oil Tubing: 1.315″-4 1/2″ Ends: NUE/EUE.
Size of oil Casing: 4 1/2″ -20″Ends Connection: STC/LTC/BTC, Premium Connections. We can manufacture all kinds of Pup Joint of Tubing and Casing, Coupling with Left type and Right type.
Steel Grade(Materials):H40,J55,K55,N80,L80,C-90,C95,T95,P110,Q125,13Cr-80,13Cr-110,Super 13Cr.
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Learn how to find the volume of rotation around a line defined for x in terms of y. Volume of rotation problems are essentially area between curves problems but with a slightly different formula that accounts for the 3D component.
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Hi, I’m Krista! I make math courses to keep you from banging your head against the wall.
Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”
So I started tutoring to keep other people out of the same aggravating, time-sucking cycle. Since then, I’ve recorded tons of videos and written out cheat-sheet style notes and formula sheets to help every math student—from basic middle school classes to advanced college calculus—figure out what’s going on, understand the important concepts, and pass their classes, once and for all. Interested in getting help? Learn more here: https://www.kristakingmath.com
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