Abstract: A vehicle seat reinforcement device includes a leg portion mounted on a floor panel, a seat cushion frame slidably mounted on the leg portion, and a load reinforcing structure connected between the leg portion and the seat cushion frame, wherein when a seat belt anchorage load is transferred to the seat cushion frame, the seat cushion frame is locked to the leg portion by the load reinforcing structure.

Abstract: A refrigerant pipe for a refrigeration cycle and manufacturing method of the same. The refrigeration cycle has components including a compressor, a condenser, an evaporator and an expander that are connected to each other via the plurality of refrigerant pipes such that the refrigeration cycle forms a closed loop. Each refrigerant pipe includes a main pipe section having a first and a second end, and a connection pipe section at the first end and the second end of the main pipe section configured to be connected to the components of the refrigeration cycle, wherein a thickness of the connection pipe section is larger than a thickness of the main pipe section.