KOKEN BORING MACHINE CO., LTD. was founded in 1946 , when the entire country was in the unstable social period right after the Second World War. Our products/services have taken the leading positions for the country's civil engineering areas : grouting, probing work for tunnel investigation, anchoring, water well construction, hot spring construction, geologic drilling, piling, raise boring and lots of others. - 製品 Archive - KOKEN BORING MACHINE CO., LTD.
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