Lincoln can also manufacture conduits, merchant couplings, drive shoes, and expansion joints. Lincoln can saw pipes up to 22" in O.D. and offers Zinc and Manganese Phosphate plating. Lincoln has the ability to manufacture large amounts of couplings quickly and it is presently the major supplier to Maverick Tube (including Prudential Steel) and Vallourec & Mannesmann Group. Exxon/Mobil and Weatherford are also repeat customers. Lincoln utilizes in-house computerized programming to manufacture all of the special connections. By integrating Global Shop MRP software in inventory control and production scheduling, Lincoln is able to monitor day-to-day operations by tracking production employees from the time they logged in until they logged out and every order from production to shipping. The business partners have over 40 years of experience in the coupling manufacturing business and are readily available to assist with any questions or problems if they arise.