| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: hammer comprises the handle with the fist end, hammer head attached to the said handle first end. One end of the hammer head has a poll with the striking surface. The first front extractor and second front extractor come off the said poll, the latter being arranged between the handle and the poll. The first and second front extractors have their outer extreme edges jointed together by a web. ^ EFFECT: expanded performances. ^ 32 cl, 17 dwg |
