Manual PU machine
as one or two density
With the ability to have 12 to 54 horizontal stations (to produce all kinds of soles and sandals) / or vertical stations (to produce all kinds of shoes)
No color to having four colors

A manual polyurethane (PU) foaming machine is a device engineered for the manual production of polyurethane foam.
Manual machines are pieces of equipment or tools in the machine and fabrication shop that are operated by hand, such as, pressing buttons, rotating knobs, squeezing triggers or many other functions. These machines require no computer control but rather rely on the skill and the intellect of the operator.
PU Machine is used for developing sole and shoes, Tyre, cycle seat, smiley ball, car bump stopper etc . It is designed to develop high-end products using quality raw materials such as isocynate & polyurethane.
Manual machining constitutes any traditional machining that is controlled by hand, rather than by a computer. This will include all traditional machines such as drill presses, lathes, bandsaws, endmills, grinders, etc.

Both manual (related to hands) and non-manual (not made with hands) components of a sign together make a sign meaningful.