Slates from the Cambrian, Ordovician, Silurian, Devonian, Dalradian formations. Characteristics, standard designations, thickness gradings, marketing descriptions, testing procedure for atmospheric conditions. Length and widths, with notes on randoms and peggies appended.
Original price was: $160.02.$80.00Current price is: $80.00.
Specification for roofing slates-Imperial units
BSI Group , 04/21/1971
Pages: 12
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