Duffy Inc

Duffy Inc is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Sand & Gravel
• Stone Crushed

North American Industry Classification System (NAICS) Categories:

• Brick, Stone, And Related Construction Material Merchant Wholesalers > Building Stone > Stone Crushed
• Home Centers > Masonry Materials & Supplies > Sand & Gravel

Standard Industry Classification (SIC) Categories:

• Brick, Stone, And Related Construction Materials > Brick, Stone & Related Materials, Nec > Stone Crushed Wholesale
• Lumber & Other Building Materials > Masonry Materials & Supplies > Sand & Gravel