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Permanent casting refers to a process in which the cast will not break.
Q8: The _ is the most commonly used
Q9: Injection molding process involves injecting molten plastic
Q17: The following scales and their notations are
Q29: Extension lines can be used to show
Q37: Cylindrical objects can be represented with only
Q47: There is no need for proportion when
Q80: Orthographic projection is also called "proportional projection."
Q95: Taper taps generally have lead in chamfers
Q126: _ threads are the most common threads
Q169: CAD and CAM were traditionally the best