Due to the Logistical difficulties and the higher costs for service
 associated with the U.S. Mail, We do not offer  it as one of our standard
 shipping options. We may impose an additional  handling fee on orders
 where the customer specifies U.S. Mail, or at our  discretion, cancel the
 order and refund the customer. Shipments going to overseas 
Military Bases will not be assessed extra charges.

INFORMATION LISTED ON OUR WEBSITE:

Detailed product specifications may not be available for all of our products.
Additionally, product manufacturing specifications change from time to time.
We can not provide detailed product specifications for specialized engineering
 and scientific applications. If you need detailed product specifications for
engineering and scientific applications, we suggest that you purchase sample
quantities of the product and conduct your own testing or contract with a private
 laboratory to conduct testing for you.