Bore hole drilling machine (DDW-600) DDW-600 drilling rig is the integral steel-tracked chassis model with powerful mobile capability; advanced negative feedback 1  ... DW/TXS Construction Equipment (Beijing) Co., ...
Levitation. Maglev trains have no contacts with the rails while they move forward. They are levitated on the guide-way with the help of magnetic forces. Levitation is the process by which an object is suspended against gravity in a stable position without any physical contact.
Outdoor Garden Railroads. One of the most popular uses of G gauge trains is outdoor garden railroads. The track and structures are rugged enough to survive outdoor climates all year long. Most modelers keep the trains stored inside for security and protection when not in use.â.