SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
15	GENERAL BUILDING CONTRACTORS	3,344	78
16	HEAVY CONSTRUCTION CONTRACTORS	6,403
17	SPECIAL TRADE CONTRACTORS	64,989
26	PAPER AND ALLIED PRODUCTS	100
27	PRINTING AND PUBLISHING	36
28	CHEMICALS AND ALLIED PRODUCTS	711	3
30	RUBBER AND MISC. PLASTICS PRODUCTS	225
34	FABRICATED METAL PRODUCTS	11,614	661
35	MACHINERY, EXCEPT ELECTRICAL	3,580	177
36	ELECTRIC AND ELECTRONIC EQUIPMENT	3,831	164
37	TRANSPORTATION EQUIPMENT	3,849	47
48	COMMUNICATION	1,069
50	WHOLESALE TRADE - DURABLE GOODS	269
TOTAL		100,020	1,131

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.