Cement and sand and flyash mixture is centrifugally placed to the interior of the spinning pipe. The mortar is evenly distributed to produce a smooth, dense finish of uniform thickness. Cement mortar lining can be applied to pipe sizes 3" thru 36" diameter. All sizes of fittings can be lined by hand application. Mobile can help end-users mix cement based on high sulfide and moderate sulfide conditions based on recommendations from API 10A and ASTM C-150 standards.