¿Cuáles son los grosores de manta de fibra de vidrio MÁS comunes que se utilizan como revestimiento de conductos?
a. 4 y 6 pulgadas (10,16 cm y 15,24 cm)
b. 2 y 3 pulgadas (5,08 cm y 7,62 cm)
c. 1-1/2 y 2 pulgadas (3,81 cm y 5,08 cm)
d. 1/2 y 3/4 pulgadas (1,27 cm y 1,90 cm)
c. 1-1/2 y 2 pulgadas (3,81 cm y 5,08 cm)
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