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Product Origin:China
Brand Name:jingyanggang
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Description:the product is being mainly used in coal mining , metal mining,stoning ,road construction and etc.we produce kinds of rock drilling tools and also we can make as the requirement of the customer specially. the main products of our company are button bit,chisel bit,cross bit, down-the -hole hammers ,rod ,shank and coal mining bits.these products get the good reputation of our customers