Thermobestos Blocks - Johns-Manville DocumentationProduct Code: 1098
Quantity In Stock: 1
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Title: Thermobestos Blocks - Johns-Manville Documentation
This page describes Thermobestos blocks as containing asbestos. They were used for insulating boilers, tanks, heat exchangers, and other equipment up to 1200F.
1 Page Only, 1 Side Only
Undated, but probably from 1930s-1950s
Condition: Very good.