This DTH drilling rig is specifically designed for photovoltaic foundation pile holes. It is equipped with an 86kW engine and a high-efficiency desert air filter, supporting a maximum drilling diameter of 500mm.
[pdf] This DTH drilling rig is specifically designed for photovoltaic foundation pile holes. It is equipped with an 86kW engine and a high-efficiency desert air filter, supporting a maximum drilling diameter of 500mm.
[pdf] Why do we dare to say that our kelly bar are the best in China? First of all, it is because of our strict control on the material. When it comes to materials, we never cut corners. The first two sections of kelly.
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