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. Horizontal elbows, change direction of a truy in the same plane as the bottom of the tray and are made in 30, 45, und 90-degree forms; inside and outside elbows are for changes perpendicular to the tray bottom.
a. 10, 20 and 45- degree
b. 30, 40, and 45- degree
c. 30, 45 and 90-degree
d. 20, 55 and 60-degree
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Answer:
Letter C
Explanation:
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