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By visiting the site master ，we find that the common big hammers have a big quality, strong impact, but a strong vibrations gives user hands a serious injury. The design that is by means of spring provides a solution to the above problems the concept. The handle is mainly made by carbon fiber, effectively reducing the weight lifted
The design uses a spring similar to a strong spring fitness spring rod, strong anti-load capacity. The weight of the spring itself to a certain extent also enhances the impact strength.