1) Cannery 2) Factory 3) Foundry 4) Lumbermill 5) Metalworks 6) Mill 7) Plant 8) Steelworks 9) Sweatshop 10) Workshop 1) Factory 2) Industrial plant 3) Manufacturing plant 4) Mill 5) Plant 6) Works 
• (a.) Pertaining to manufacturing. • (n.) A building or place where anything is manufactured; a factory. • (n.) Manufacture.
Man`u·fac'to·ry noun ; plural -ries . [ Confer Latin factorium an oil press, prop., place where something is made. See Manufacture .] 1. Manufacture. [ Obsolete] 2. A building or place where anything is manufactured; a factory. 
manufactory A plant consisting of buildings with facilities for manufacturing; factory, mill, manufacturing plant, industrial plant.
[Treasure Island] factory; manufacturing plant. (The sort of factory Jim may have had in mind, in the eighteenth century, would have been something like a fabric mill, whose heavy looms operated with much noise and shaking.)