box spanner

The spanner is different, according to the structure may divide into two big kinds, namely manual screw spanner and box spanner.

扳手按照结构的不同主要可以分为两大类，即手动螺丝扳手和套筒扳手。

Design of the Die for Both-Ended Circular Wrenches The variable hexagonal box spanner is the synthesis of the manual screw spanner and the hexagonal box spanner.

双头套筒扳手模具设计可变六角套筒扳手则是对手动螺丝扳手和六角套筒扳手的综合。

Use the correctly sized spanner ( preferably a ring, box or socket spanner ) for nuts and bolts.

针对不同大小的螺母和螺丝钉使用正确尺寸的扳手,尤其是环状的 、 箱体或窝形的板手.

Use the correctly sized spanner ( preferably a ring, box or socket spanner) for nuts and bolts.

针对不同大小的螺母和螺丝钉使用正确尺寸的扳手，尤其是环状的、箱体或窝形的板手。