Cob

Cob, cobb or clom (in Wales) is a natural building material made from sand, clay, water, some kind of fibrous or organic material (straw) and earth.

 

Further reading from Wikipedia

Limestone, Marble and Precast Concrete Cleaner - Neolith 907

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Masonry degreaser - Neolith 425

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Non-Corrosive Cleaner - Neolith 39N

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Heavy Duty Grease Removing Agent - Neolith 275

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