Code 3612 applies to employers engaged in manufacturing pumps, engines, refrigeration units and other similar items.  

The basic raw materials that are used in the manufacturing may consist of rough castings, tubing, pipe made of various metals or plastic and electrical components that are received from others.  The castings are machined as well as other parts with the use of lathes, millers, planes, drill presses, grinding equipment, planers, saws and shapers, shears and screw machines.  They are then assembled, buffed, sandblasted, welded and, in some cases, painted.  The manufactured items are inspected, packed and shipped to the employer’s customers.