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U135 bit adopts tungsten carbide tips and 42CrMo to produce under special heat treatment, U135 conical bullet bit is wear resistant and have long service life.
Xi'an Tydrillbits Co.,Ltd is one of the U135 tunnel boring machine bits supplier and exorter in China. We doing export business from 2014, rely on the quality products and good service, our bit for tunnel boring machine, for coal mining, for trenching and for road milling have exported to many countries in the world.
We also supply other model size tunnel boring machine bits, such as BTK110, U170, U47, BTK112, BGS89 etc. If you are interested in any of our products, please feel free to contact us by robert@tydrillbits.com.
