Shandong Zhongrui Construction Machinery Co., Ltd in China ,we are the professional manufacturer of DTH hammers
and bits, air leg rock drilling machine more than 20 years.
DTH hammer and drilling bits are widely used in water well and geothermal wells, mining and quarry, exploration and foundation holes,
piling and constructions, ground and civil engineering .
All hammers and bits , air leg rock drilling machine can be sent to you as testing samples at lowest cost prices.
Now our products are exported to more than 26 countries.
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