Keruing...
Scientific Name: Dipterocarpaceae 
Costulatus
Janka hardness: 1010
Other names and species:
Dipterocarpaceae
Origin: Malaysia, Indonesia, Thailand, India, Vietnam, Pakistan, Laos, Cambodia, Sri Lanka, Indomalasia.
Appearance: Ranges from light reddish brown to dark brown with a purple tint. Seasons to a deep, dark brown. Mostly straight grain. Sapwood clearly demarcated.
Properties: Highly durable, hard wood.
Principal uses: Flooring, heavy carpentry, bridges, veneers, stairs and crates.