Heman Industry's  list of process for metallic product include:

Sand casting -

Gravity feed into sand molds, Molds are made using Aluminum or wood patterns. Molds are single use. Commonly used materials are Iron, Steel, Aluminum, and Brass.

Investment casting -

Gravity feed into ceramic molds, The molds are made with injection molded wax patterns. Molds are single use. Commonly used materials are Iron, Steel, Aluminum, and Brass.

Die casting -

High pressure injection into Steel molds of non-ferrous materials, such as Aluminum, Zinc, Magnesium, Brass. Molds may be used repeatedly.

Centrifugal casting- 

The casting of metal in a rapidly revolving mold —used especially of the casting of pipe in which a rotating tube serves as mold.

Permanent mold -

Gravity feed casting method using steel molds. Molds may be used repeatedly. Commonly used materials are Aluminum and Brass.

Metal injection molding (MIM) -

Employs a combination of Powdered Metal and Polymer binding material for the injection into a Steel mold. Steel based materials are most common.

Hot and cold forging -

Shapes materials via compressive forming into Steel molds at high or ambient temperatures. Commonly used materials are Steel, Aluminum, and Brass and Copper.