The Caterpillar D7G bulldozer has the advantages of being powerful, reliable, durable and flexible, and is suitable for bulldozing, grading and excavation operations in various earthmoving and construction projects.

No casing, deep hole drilling with mud wall protection, or drilling with casing and pipe installed with power head or hydraulic pipe shaker.If drilling with Kjeldahl drill pipes, the BG Special series drilling rigs are our solution. The special series of rotary drilling rigs are particularly suitable for drilling with Kjeldahl drilling rigs but not for other purposes and perform perfectly.