外套管,外套筒;
Connecting bolts are arranged in the plugging conical points, and an anti-rotation key and an outer six-square sleeve which can realize the linkage are arranged on the screw bolt.
封堵内置有连接螺栓,螺栓上设有防转键及实现连动的外六方套。
The sling has polyester load bearing fiber and polyeaster outer sleeve for extra durability.
用纱线作为承载芯;化纤外套增加耐用性.
The cylindrical tube of the conical sleeve, which is provided with outer screw threads, is provided with at least one cushion ring and at least one screw nut.
安装在锥形套筒的外螺纹圆筒管上的至少一个垫圈和至少一个螺母。
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