The outer sleeve is aluminium, the inner sleeve is hot-dip galvanized seel.
外管为铝制件、内管为热镀锌钢制件。
The inner sleeve is hot-dip galvanized steel, the outer sleeve and lining sleeves are aluminium.
内接续管为热镀钢制件,外续管口及两端衬管为铝制件。
The outer sleeve is aluminum, inner sleeve is hot-dip galvanized seel.
外管为铝制件,内管为热镀锌钢制件。
The health massage crutch adopts combination of a multi-section main pipe, an inner sleeve and an outer sleeve as a stay bar to achieve the aims of convenient detachment and portability.
本发明采用多节主管和内外套管的组合作为撑桿,实现方便拆接,便于携带的目的。
A box includes an outer shell surrounding an inner sleeve having spaced apart first and second sleeve side walls attached to a sleeve bottom wall.
一个盒子包括一个外壳内套筒周围有一间隔开第一和第二袖袖端连接到底壁墻。
During solidification of hollow ingot, its solidification and quality are seriously affected by the heat transfer boundary conditions between inner sleeve of core and cooling medium.