A constant mesh gearbox has five parallel rotational axes. The request includes an agricultural product identifier. The intermediate Al alloy layer has a sub-layer being in direct contact with the steel back layer, and at least one sub-layer positioned closer than the former sub-layer to the Al-base bearing alloy layer. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. One of the laser lines provides feet alignment and the other provides a feet to ball laser reference line. 6,595,815 is achieved by the use of a new configuration of the active hulls and the stationary hull, the modification of the active hulls and the stationary hulls and the addition of a pair of the modified active hulls.