According to different requirements, such as weight or cost, etc., to choose a different design. Chassis, for example.

Structure	Picture	Weight	Cost
Steel welding chassis		1st. （heaviest）	3th.
Aluminum beam+Die casting seat leg		2nd.	2nd.
Aluminum alloy welding chassis		3th.	1st. （cheapest）

Ergonomics simulation analysis

Body pressure distribution analysis

CAE stress and displacement analysis

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  Robot welding

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  Laser welding

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  Precision machining

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  Foaming

Ergonomics simulation analysis

The commonly used fire resistant standards can be tested on our seats, such as DIN5510-2，FAR25.853，BSS7238，BSS7239，TB/T3237

Static strain testing system

Mechanics experiment simulates the real strained condition to determine the strength, stiffness and stability of the product under static load

High frequency vibration system

It simulates the vibration environment in the running process of high speed train, determine the seat actual state of train operating environment

In order to carry out “One Flow “production, we engineering analysis for each working step on each single seat, then calculate capacity and speed.