Shipbuilding was a considerable industry at Harwich in the 17th century.
There are cement and shipbuilding works.
The prosperity of the French shipping trade is hampered, by the costliness of shipbuilding and by the scarcity of outward-bound cargo.
The live oak is one of the most valuable timber trees of the genus, the wood being extremely durable, both exposed to air and under water; heavy and closegrained, it is perhaps the best of the American oaks for shipbuilding, and is invaluable for water-wheels and mill-work.
Derrick cranes are made of all powers, from the timber I-ton hand derrick to the steel 150-ton derrick used in shipbuilding yards.