Gem Testing

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

• Engineers Consulting
• Environmental & Ecological Products, Equipment & Supplies

North American Industry Classification System (NAICS) Categories:

• Other Miscellaneous Durable Goods Merchant Wholesalers > Environmental & Ecological Products & Supplies
• Engineering Services > Engineers Consulting

Standard Industry Classification (SIC) Categories:

• Durable Goods, Nec > Environmental & Ecological Products & Supplies
• Engineering Services > Engineers Consulting