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Profile Projector, Find Least count, Major and Minor dia of thread, thread angle, Depth.

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DIY Scanning Laser Microscope

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2000TL'YE ANDROID SİNEMA SİSTEMİ !!

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MEASUREMENT OF ANGLE USING SINE BAR:SINE CENTRE

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Meerametzer profile projector

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Making a Fully Functional Jet Engine from Soda can | diy Jet Engine | homemade Jet Engine