Unimate customized drilling interlocking kelly bars and kelly bar accessories for all rotary drilling rigs
Kelly bar
Type: 1,Interlocking Kelly Bar 2,Friction Kelly Bar
Diameter: 377-508mm
Sections: 3,4,5,6
Application: used with piling rigs for drilling in dense sand and gravel and weak to strong rock
kelly bar accessories
kelly bar spring,kelly head etc.
没有评论:
发表评论