Tianjin Grand Construction Machinery Technology Co., Ltd deeply engaged in rock breaking tools more than 20 years.
We are offering R& D, precision manufacturing, international trade and drilling tools solution service, while now is growing up as a leader of global rock breaking tool industry.

Our head office is located in Tianjin city which is a municipalities city directly under the China Central Government. Tianjin city has airport and seaport, which also is a beautiful modern city. Our manufacturing center is located in Qianjiang city Hubei Province. Our modern production lines have CNC machining center and CNC lathe, having modern management level and manufacturing ability. The production center is owning more than 290 staffs(13.8% of them are engineers).

The company' s products cover multiple fields, such as roller bit, tricone drill bit, PDC bit and so on.