spec_flags: bitmask(IND_FLAG_BUILT_ON_WATER, IND_FLAG_LONG_CARGO_TYPE_LISTS);
                    accept_cargo_types: [cargotype("FOOD"),cargotype("BDMT"),cargotype("MAIL"),cargotype("FRUT"),cargotype("GOOD")];
                    prod_cargo_types: [cargotype("ENUM"),cargotype("GLUE"),cargotype("PASS"),cargotype("ZINC")];