STAMFORD, Conn. - Crane Co., a diversified manufacturer of highly engineered industrial products, announced that it has purchased all of the capital stock of Friedrich Krombach GmbH & Company KG Armaturenwerke and Krombach International GmbH, both of Kreuztal, Germany. Krombach is a leading manufacturer of specialty valve flow solutions for the power, oil and gas, and chemical markets, employing 640 people…