Ehret Magnesia Manufacturing Co

Heat Insulation Handbook

Heat Insulation Handbook (1942)
Ehret Magnesia Manufacturing Co. Asbestos insulation, 85% magnesia, pipe co

ering, lagging, cement, enduro, Durant Insulated pipe, etc.

Ehret Insulation Brochure

Ehret Insulation Brochure
85% Magnesia, Enduro Pipe Insulation, and other insulating products.

Ehret Magnesia Manufacturing Ad<p>ertisement

Ehret Magnesia Manufacturing Ad

1930s. Enduro (Diatomaceous Earth and Asbestos), 85% Magnesia, Asbestos Packings, Fibrekote, and more.

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