Henan Shenlong Petroleum Drilling Tools Co.,Ltd
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Product
Drill Collar
Heavy Weight Drill Pipe
Stabilizer
Drill Stem Subs
Non-Mag
Kelly
Producing
12 meters Long Lathes
Deep Hole Boring Machine
Heat Treatment Device
CNC Thread Lathe
Harding Facing
Quality Control
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Mechanical Properties Test
Precision Inspection
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Certification
API SPEC 7-1
ISO9001:2000
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