... lifelong warranty for hammers 3,ISO 9001:2008 fine crushing china crusherOur hammer crusher is mainly applied to stone ... has an impact plate in the back of the crushing cavum to better the materials both in shape ... is to say, you can wet the stone when crushing it to reduce the dust pollution, and keep the ... crusher. It use the alloy hammer, and cast steel parts to guarantee the function and its life.4, ...