Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,439 pages of information and 233,876 images on early companies, their products and the people who designed and built them.

Chemical and Insulating Co

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of Darlington

1937 Heat insulating engineers. "Darlington" 85% Magnesia Coverings. "Dextramite" High Temperature Coverings.[1]

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