1,high quality and competitive price 2,durable steel material for longtime use 3,applied to the hard and soft layer       The external key of the mechanical interlocking kelly bar usually hao three or six keys. There are three large groups or N groups...

1.any type of kelly bar combined and all advantage together 2.durable steel material for longtime use 3.drilling depth is deep Combined type kelly bar is a kind of combination drill, which is formed by mechanical locking type, full interlocking type, frictional type and other...

1.good quality and reasonable price 2.High performance 3.Long operation life Machine type: Hydraulic motor with good quality and lowest price and best service.we have many types,which can meet the requirement for using and maintenance of customers. ...

1.high quality and reasonable price 2.transmissing the pressuring force best 3.applied to the hard layer and high efficiency      Full interlocking pressurizing kelly bar is also known as concave-convex Kai-type pressurizing kelly bar.It is used for IMT and...

1.high quality and competitive price 2.different type of kelly bar combined and advantage together 3.long time use         Combined type kelly bar is a kind of combination drill, which is formed by mechanical locking type, full interlocking...

1.upper fitting of kelly bar to joint the drilling bucket 2.producing different type to match different type of kelly bar      It is kelly bar drive head and upper fitting, which  is used to joint the drilling bucket or...

1.good quality and reasonable price 2.producing different type to match different type of kelly bar      It is kelly bar drive head and upper fitting, which  is used to joint the drilling bucket or auger. usually, it  contains two types : one pin or...

1.contains main winch and service winch 2.good quality and high efficiency 3.reasonable price  The machine equipped with a main winch and a service winch , both of SW(controlled fall) type which are installed in the central area of the turret. The first is used to pull out...

1.broad costruction options 2.high efficient working performance 3.super torque of the drilling 4.as customer's requirement There are any rotary drilling rig, containing Soilmec, IMT and other parts of made-in-China. They are almost new and have high efficient work...

1.high quality and competitive price 2.transmissing the pressuring force best 3applied to the hard layer and high efficiency    Full interlocking pressurizing kelly bar is also known as concave-convex Kai-type pressurizing kelly bar.    It is ...