What are the most common casting defects, and how can they be prevented?

Porosity in castings what causes it, how do you prevent it, and what should you specify

Sand Casting vs Gravity Die Casting - which should I choose.

Aluminium Sand Castings and Gravity Die Castings

Haworth Castings

Machining Using CNC Machinery | Haworth Castings

The Aluminium Sand Casting Finishing Process | Haworth Castings

Haworth Castings Home Page Video

The Pouring Process in Aluminium Sand Casting

Aluminium Sand Casting Pattern and Mould Assembly

Tour of Haworth Castings Aluminium Sand and Gravity Die Casting Foundry