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Inquiry (采购产品): power spring I am a student at RPI, and I am designing a retractable reel for an engineering class that I am taking. I do not know how large or powerful of a spring i will need in order to power my reel efficiently. It must hold about 14 feet of air hose. If you have any suggestions, or a reel that would work, I would greatly appreciate it. Thanks you Rachel Pratt **** Hidden Message ***** Rachel Pratt 8 Sherry Road Troy, NY 12180 USA Company: None Title: Student Phone: (518) 727-6810 E-mail: prattr@rpi.edu **** Hidden Message ***** prattr@rpi.edu
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