CANTON, OH—A United Steelworkers union has approved a five-year contract that will allow a $225 million expansion of Timken’s manufacturing plant here.

GREENVILLE, WI—Industrial Ventilation Inc. will add 35 full-time employees this year as it expands its assembly plant here.

ATLANTA—Caterpillar plans to build a new assembly plant in Georgia, bringing an estimated 1,400 jobs to the state. The plant will be built in the Athens area.

GRAND ISLAND, NE—Combine manufacturer CNH is appealing the $23.8 million propert tax valuation of its assembly plant here.

DODGE CITY, KS—Curtis Machine, a manufacturer of gearboxes for agricultural, printing and food processing machinery, is building a new assembly plant here.

FAIRLESS HILLS, PA—Gamesa Technology Corp. completed and shipped its 1,000th nacelle assembled at its factory here.

PEORIA, IL—Caterpillar Inc. won’t choose its home state of Illinois as the site of its new $150 million assembly plant, citing the state’s “unfriendly” business climate.

BROWNSVILLE, TX—Precision Coils is investing $3.7 million to renovate an old assembly plant here to improve production of its heating and cooling coils.

A Siemens gas turbine is 36 feet long and weighs 280 tons—and yet its parts are machined to tolerances of a few thousandths of an inch. ASSEMBLY magazine's editor-in-chief goes behind the scenes to see how this engineering marvel is made.