The component comprises the medium holding rod, the helical line, a pipeshell, a first diamond film and a second diamond film.
组件,包括介质夹持杆、螺旋线、管壳、第一金刚石薄膜、第二金刚石薄膜。
2
The technology to avoid the dishing and folding of pipeshell appearing at the bending of long rectangular non-stuffing and coreless tube was introduced.
Heat insulating glass wool pipeshell is tubular heat insulating tube cured and formed after heating centrifugal glass cotton pad to which phenolic resin adhesive agent is applied.