Mini 4 Cylinders Horizontally Opposed Steam Engine Model for Model Ship

Mini 4 Cylinders Horizontally Opposed Steam Engine Model without Boiler for Model Ship Gift Collection A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. Features:1. NICE APPEARANCE: The steam engine is miniature design, can be placed in the palm of your hand like a treasure, delicate mini, exquisite workmanship. It is an excellent handicraft that is collected and appreciated.2. EXTREMELY FINE CRAFTED: Made of metal material, exquisite and beautiful. Well made in details, and its surface is bright.3. EASY OPERATION: Please connect the boiler by yourself (boiler is not included). Next, adding steam cylinder oil to lubricate each part, before connecting brass pipe, then open steam valve. The crankshaft cannot start when it stops at upper and lower dead ends.4. PRIORITY GIFT OPTION FOR MANY APPLICATIONS: It is an amazing and fantas