What is done to reduce cost and weight of the steel chimney?
A. Lining may extend to only one third of the total length
B. Lining may extend to only two thirds of the total length
C. Remove some of the steel
D. None of the above
Answer: A
What is done to reduce cost and weight of the steel chimney?
A. Lining may extend to only one third of the total length
B. Lining may extend to only two thirds of the total length
C. Remove some of the steel
D. None of the above