座、背外壳：采用优质多层旋切木皮经模具热压成型，经仿形打磨工序、面压实木皮做多层油漆饰面。
扶手架及站脚：采用优质钢板、钢管冲压焊接成型，并经打磨、除锈、磷化、静电喷粉、高温烤焗等工艺处理。
写字板：采用特有的***转轴装置，并加***垫圈，支撑连接结构均为铝合金压注成型。
Back foam：High density PU foam.
Seat foam：PU foam molded with metal structure rubber strings.
Seat and back wood：Multi-layer plywood after heat treatment,with painting finished.
Lifting mechani***：By gr***ity or spring and gas bar organization.