1) Engine flip frame and cylinder head auxiliary connection plate device:      1.1 The decelerator is equipped with self-locking function, can be turned 360 degrees and can be safely locked at working angle.      1.2 Configure the dedicated cylinder head assembly connection plate, with the oil plate on the base, so that the three do not fall to the ground;      1.3 The whole bench is welded with rigid structure. The materials used, such as square tube and angle steel, are made of standard materials of the national standard. The surface is sprayed with castor wheel. The bench is flexible and convenient for teaching.      1.4 Equipped with instructions for use and maintenance materials. 2) Cylinder head assembly:     Complete parts and accessories, complete functions to meet the requirements of disassembly and assembly of training