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ASTM A992/A572-50 (Grade 50) FINISH:Mill Finish, slightly grainy. WORKABILITY:Welding = Excellent Machining / Grinding = Good Bending / Forming = Fair Wear Resistance = Fair Corrosion Resistance = Poor. MECHANICAL PROPERTIES:Tensile Strength = 65,000 psi Yield Point = 50,000 - 65,000 psi Part 1:Make your filament at home for cheap by Alex Plastic is everywhere and its cheap yet we pay $20 a spool for 1kg filament which only contains 750gram of filament, rest is the empty spool weight. I started looking for ways to make cheap
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