翻新头。炮弹落在相同位置可能性极低,所以这个在相同地方再坏一次是低概率事件。况且可以花小钱买延长保修
http://www.adorama.com/NK18140R.html?cvosrc=cse.google.NK18140R&cvo_cid=38589028051&gclid=CjwKEAiAy8ujBRCY6c-hveijhFASJAAcyGic8lxLMeEs3H46HNtNr92cEjdSzIJLpVvgg3wCn2QaURoCtjfw_wcB
http://www.adorama.com/NK18140R.html?cvosrc=cse.google.NK18140R&cvo_cid=38589028051&gclid=CjwKEAiAy8ujBRCY6c-hveijhFASJAAcyGic8lxLMeEs3H46HNtNr92cEjdSzIJLpVvgg3wCn2QaURoCtjfw_wcB