Surveyor’s compass (National Museum of American History)

Products

Spalling of concrete slab on grade due to expansion $1.00
Flexural cracks on pavement slab due to lack of reinforcement or expansion of subgrage $1.00
Cracking of boundary walls due to soil settlement or foundation on expansive clay $1.00
Column Capital for Waffle Concrete Slab in Dandenong Plaza Melbourne $1.00
Waffle Concrete Slab in Dandenong Plaza Melbourne $1.00