It is from North area of USA and Canada.
Spruce is light and has little contractibility so that is used for pulp, box, instrument and plywood.
ㆍNo transformation
ㆍNo twisted
ㆍLight
ㆍThe longest length : 300 cm (10 feet)

It is from Canada. Basswood is soft and easy to manufacture.
ㆍLess transformation
ㆍLess twisted
ㆍLight
ㆍThe longest length : 180 cm (6 feet)