A lot of people have reported finding these odd pennies and they are quite popular with some coin collectors.
Petrex floating roof.
The petrex full surface contact aluminum honeycomb internal floating roof is the ultimate emission controlling device for fixed roof storage tanks.
Since components are pre fabricated there is no field cutting or gluing adding to the product s stability and customer assurance and satisfaction.
A floating cover or roof having a plurality of floating panels or panels is provided.
They also design and manufacture oil water separators as well as other items utilized in the petroleum industry.
Located in warren pennsylvania but doing business throughout the world petrex is well known as the manufacturer and designer of the finest longest lasting full surface contact internal floating roofs in the world.
The petrex aluminum honeycomb internal floating roof system is a self contained panel system constructed of modular designed aluminum honeycomb panels.
Each floating roof module is seal welded pressure tested to rigorous standards and certified leak free at our integrated design and manufacturing facility prior to shipment.
It provides the maximum achievable control technology in reducing the emission of vapors and complying with air pollution regulations.
Petrex is an environmentally driven company who has since 1972 been designing engineering manufacturing and installing internal floating roofs and oil water separator cover systems.
Each panel is fabricated to be uniform durable strong and buoyant eliminating the need for structural framing.