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Q4: Welding is a process of joining two
Q7: A "lead" is one of the terms
Q17: The numeral with a decimal should be
Q41: _ is popular because of low cost
Q50: A welding symbol, which consists of two
Q54: Spring function depends on _.<br>A) retraction<br>B) compression<br>C)
Q54: This is a plane that contacts the
Q64: Which of the following should be considered
Q109: Name a machine tool that is computer
Q139: Select a way plastic can be changed