OEM Customized China API Spec 7-1 Oil Heavy Weight Drill Rod/Drill Pipe O. D 168.3mm AISI 4145h

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The key to our success is “Good Merchandise High-quality, Reasonable Selling price and Efficient Service” for China Heavy Weight Drill Pipe, Heavy Weight Drill Rod, We are going to not only continuously introduce technical guidance of experts from both home and abroad, but also develop the new and advanced products constantly to satisfactorily meet the needs of our clients all over the world.