paving block of pressed or moulded glass
paving block of fused slag without a binder (excl. heat-insulating blocks)
From cotton, he developed such unlikely items as paving blocks, building boards, rope, and paper.
paving block of pressed or moulded glass
paving block of fused slag without a binder (excl. heat-insulating blocks)
From cotton, he developed such unlikely items as paving blocks, building boards, rope, and paper.