La roscadora de engranaje se utiliza, normalmente, para roscar tuberías de 2-1/2 pulgadas (6,35 cm) a _____ de diámetro.
a. 3 pulgadas (7,62 cm)
b. 4 pulgadas (10,16 cm)
c. 6 pulgadas (15,24 cm)
d. 8 pulgadas (20,32 cm)
Answer: C
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What will be an ideal response?
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