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About Us
<b>Sinwoo Precision Co., Ltd.</b> Succeeds to develop economic Roller Cutter &
Bits that are the most suitable for the Korean Stratum considered as the extremely
difficult one in the world and they are testified to have the better quality compared
to imported products while being applied in many construction fields such as an
electricity, communication, gas pipe line, the discharge pipe of drain, etc.
<p> The aim in the construction field of tunnel excavation is to execute much
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