拓展页 - 周俊手风琴风箱工艺

2022-04-04Air Leak in the bellows
2022-04-04Sixteen steps
2022-04-04Wooden frame
2022-04-04Paper Edge
2022-04-04Bellows Blade
2022-04-04Angle throw
2022-04-04Colloids
2022-04-04Pleated mouth
2022-04-04.
2022-04-04.

手风琴制修研发：86 - 21 - 56715111 199-0176-1961 上海南西、川北、瑞二街道蒙卓老师建站沪ICP备2021009655号 - 12