Centra Corporation, Used Machine Tools for Metalworking and Manufacturing Financing Information Centra Corporation ©2007 Use Disclosure Statement Machine Tools &amp Industrial Equipment Please Take Some Time To View Our Inventory. Don't Hesitate To Contact Centra If You Have Any Questions. Buy From Centra and Save, Just In Sales Tax Alone, (there is NO sales tax in Maryland on capital equipment puchases) Not to Mention the Savings of Buying Quality Pre-Owned Machinery. Stock Items Come With a 30 Return Privilege. (see terms ) Centra Buys, Sells, Trades, Liquidates and Appraises Industrial