- 88050010107
- Drawing No：88050010107
- 30204030032SA19A headrest tube Ⅰ
- Drawing No：30204030032
- 30204030033SA19A headrest tube Ⅱ
- Drawing No：30204030033
- 30108000542SC51 angle adjuster assembly
- Drawing No：30108000542
- 30102020860SC51-4 backrest frame
- Drawing No：30102020860
- 30108000541SC51 right vertical plate assembly
- Drawing No：30108000541
- 40825010000Flat washer
- Drawing No：40825010000
- 40906010004Spring washer
- Drawing No：40906010004