首页>
外国专利>
high flexible simple and compound, consisting of two parts, and unasemirigida, or alternatively by rigid and universal parts welded between them.with constant or variable diameter 16 / 16, 20 / 20, 16 / 20.
high flexible simple and compound, consisting of two parts, and unasemirigida, or alternatively by rigid and universal parts welded between them.with constant or variable diameter 16 / 16, 20 / 20, 16 / 20.