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{"title":"Kelly Bar Damping Rubber Compression Springs ISO9001","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/bf\/35\/ee49116afe61b46a31f2eb6f2bdf-200x200-1\/kelly_bar_damping_rubber_compression_springs_iso9001.jpg","attrs":{"Brand Name":"JTHL","Model Number":"spring","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"Rotary Drilling Spare Parts Damping Spring Kelly Bar For Pilling Founadation","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/f4\/0b\/dc021fb14f820015693271f0705a-200x200-1\/rotary_drilling_spare_parts_damping_spring_kelly_bar_for_pilling_founadation_construction.jpg","attrs":{"Brand Name":"JTHL","Model Number":"50*400*410","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"high quality slewing bearing for OD406 kelly bars","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/95\/44\/2ba3cf103befa3ee55706540ec55-200x200-1\/high_quality_slewing_bearing_for_od406_kelly_bars.jpg","attrs":{"Brand Name":"JTHL","Model Number":"010 30 500","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"Kelly rod attachment Water plate use for drilling rig kelly bar 440 406 mm load","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/95\/ba\/0e84f28b75b4251ab7b554c292fb-200x200-1\/kelly_rod_attachment_water_plate_use_for_drilling_rig_kelly_bar_440_406_mm_load_plate.jpg","attrs":{"Brand Name":"JTHL","Model Number":"355 406 470 508","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"Bauer Type Kelly Bar Tool 30T Kelly Joints Of Multiple Brands Of Rotary Drilling","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4d\/29\/18a58bef8865be5375b099a865ef-200x200-1\/bauer_type_kelly_bar_tool_30t_kelly_joints_of_multiple_brands_of_rotary_drilling_rigs.jpg","attrs":{"Brand Name":"JTHL","Model Number":"30T\/40T\/50T","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"355 406 470 508 kelly bar parts Strength Ring For Drilling Piling Rig Interlocki","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4b\/62\/e4979ca21048ed984c1f331bea5b-200x200-1\/355_406_470_508_kelly_bar_parts_strength_ring_for_drilling_piling_rig_interlocking_frictional.jpg","attrs":{"Brand Name":"JTHL","Model Number":"355 406 470 508","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"Upper Anchor 16Mn Kelly Bar Parts Construction Machine Parts Piling Rig","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/ff\/c5\/8b6d6170eba2d256f2f9d5e10ba9-200x200-1\/upper_anchor_16mn_kelly_bar_parts_construction_machine_parts_piling_rig.jpg","attrs":{"Brand Name":"JTHL","Model Number":"kelly bar tools","Certification":"ISO9001","Place of Origin":"China"}}
High quality Rubber Compression Springs Kelly bar damping springs
kelly damping spring Different kelly bar is matched different Model, such as
45*330*400
55*390*400
50*400*410
55*420*420
70*480*480
Please offer the following specification : 1.Material 2.Wire diameter 3.Surface treatment 4.Inner diameter and outer diameter(ID and OD) 5.Free length and work length 6.Application
Beijing Jietaihongli Technology Co., Ltd., founded in 2004, headquartered in Beijing, branch factory in Shouguang, Shandong. The company is mainly engaged in the production and sales of rotary piling kelly bars , drilling tools, rotary piling rig overhaul, rig sales and accessories supply.
Beijin... Beijing Jietaihongli Technology Co., Ltd., founded in 2004, headquartered in Beijing, branch factory in Shouguang, Shandong. The company is mainly engaged in the production and sales of rotary piling kelly bars , drilling tools, rotary piling rig overhaul, rig sales and accessories supply.
Beijin...