Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 173
rig. S89\ 4J /fietr/fr /^ /? … /W/// Fig QUESTIONS, PROBLEMS, AND STUDIES 157 110. Compare briefly wrought iron and cast iron. 111. What is cast iron? Name some of its properties. Com-pare its strength in tension and compression. 112. What is wrought iron? How is it made? Name some ofits properties. 113. What is steel? How is it…
Mechanical drawing
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