English to Polish Tech/Engineering Automotive / Cars & Trucks

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The invention is implemented through the following solution: a manufacturing method of a seat back structure comprising:
a seat back sponge and a seat back iron support disposed in the seat back sponge, wherein lateral connecting plates are arranged on two sides of the seat back iron support, support borders for supporting two sides of the seat back sponge are disposed on the lateral connecting plates on the two sides respectively, and fixing plates for fixing an airbag are also disposed on the lateral connecting plates; a plurality of S-shaped springs are horizontally disposed on the seat back iron support at intervals from bottom to top, the two ends of each S-shaped spring are connected to the two sides of the seat back iron support, and the airbag is disposed in an anti-explosion cloth cover; and a U-shaped upper tube frame is arranged on an upper portion of the seat back iron support, a pair of headrest tubes for fixing a headrest is welded to the upper end of the upper tube frame, and a plurality of rear borders are horizontally welded to the upper tube frame; and a lower metal plate is disposed on a lower portion of the seat back iron support, and the seat back sponge is covered with a surface assembly；