O-E Vapor System Manual
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Polyethylene, A Modern Plastic, From Its Discovery Until Today
On November 28, 1990, I heard Professor Thomas Engel, the inventor of PEX plastic, speak in Sweden. The occasion was the Wirsbo-PEX 10 Times Around the World celebration. This is the speech Professor Engel delivered that day. It's a wonderful story. - Dan Holohan
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